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apps/web/src/app/[locale]/(dashboard)/[wsId]/time-tracker/page.tsx (1)

8-17: params type is incorrect – breaks Next.js typing & causes unnecessary await
params is synchronously supplied by the framework, not a Promise. Declaring it as Promise<…> forces the awkward await params and may break type-checking / IDE hints.

-interface Props {
-  params: Promise<{
-    locale: string;
-    wsId: string;
-  }>;
-}
+interface Props {
+  params: {
+    locale: string;
+    wsId: string;
+  };
+}
 
 export default async function TimeTrackerPage({ params }: Props) {
-  const { wsId } = await params;
+  const { wsId } = params;

apps/web/src/app/[locale]/(dashboard)/[wsId]/time-tracker/components/activity-heatmap.tsx (1)

1-1507: Break down this large component into smaller, focused components

This component is over 1500 lines and handles multiple responsibilities. It should be decomposed into smaller, more manageable components.

Consider breaking this component into:

1. ActivityHeatmap.tsx - Main container component (200-300 lines)
2. HeatmapViews/ - Directory for view components:
   • OriginalGridView.tsx - GitHub-style grid view
   • HybridView.tsx - Combined year/month view
   • CalendarView.tsx - Monthly calendar
   • CompactCardsView.tsx - Card-based view
3. HeatmapControls.tsx - Settings dropdown and legend
4. OnboardingTips.tsx - Onboarding tips component
5. useHeatmapSettings.ts - Custom hook for settings management
6. useOnboardingState.ts - Custom hook for onboarding state

This would improve:

• Maintainability and readability
• Test coverage (easier to test smaller components)
• Performance (better code splitting)
• Team collaboration (less merge conflicts)

Would you like me to help create this refactored structure?

apps/web/src/app/api/v1/workspaces/[wsId]/tasks/route.ts (1)

106-136: any usage & quadratic de-duplication hinder type-safety and scalability

1. The transformation pipeline still relies on any (task: any, a: any, user: any).
   This repeats the concern raised in earlier reviews – consider defining a DbTaskRow interface to capture the row shape returned by Supabase and keep the mapper strictly typed.

2. De-duplicating assignees with

self.findIndex((u) => u.id === user.id) === index

is O(n²). A single Set gives linear complexity and clearer intent:

- const seen = new Set<string>()
- const assignees = task.assignees
-   ?.map((t) => t.user)
-   ?.filter((u) => u?.id && !seen.has(u.id) && seen.add(u.id))
+ const seen = new Set<string>();
+ const assignees =
+   task.assignees
+     ?.map((t) => t.user)
+     ?.filter((u): u is { id: string } => {
+       if (!u?.id || seen.has(u.id)) return false;
+       seen.add(u.id);
+       return true;
+     }) ?? [];

This also removes the optional-chaining warning reported by Biome.

apps/web/src/app/[locale]/(dashboard)/[wsId]/time-tracker/types.ts (2)

4-19: Clarify time-unit semantics in TimerStats
The interface mixes generic number fields without indicating whether they represent seconds, minutes, or milliseconds. Consumers must read the implementation to guess. Explicitly documenting (or renaming) these fields avoids silent unit-conversion bugs.

 export interface TimerStats {
-  todayTime: number;
-  weekTime: number;
-  monthTime: number;
+  /** time in seconds */
+  todayTime: number;
+  /** time in seconds */
+  weekTime: number;
+  /** time in seconds */
+  monthTime: number;

---

55-68: Filters default to empty strings – consider null | undefined
Using empty strings to denote “no filter” forces downstream comparisons (if (filter.board) vs if (filter.board !== '')). Allowing undefined is more idiomatic and avoids hidden truthy / falsy traps.

apps/web/src/app/[locale]/(dashboard)/[wsId]/time-tracker/page.tsx (1)

34-44: Minor: redundant data mapping
rawData already matches TimeTrackerData; the spread could replace the manual copy:

-const initialData: TimeTrackerData = {
-  categories: rawData.categories,
-  runningSession: rawData.runningSession,
-  recentSessions: rawData.recentSessions,
-  goals: rawData.goals,
-  tasks: rawData.tasks,
-  stats: rawData.stats,
-};
+const initialData: TimeTrackerData = { ...rawData };

apps/web/src/components/command/quick-actions.tsx (1)

19-22: isPeakHour recalculates every render & uses hard-coded slots
While cheap, moving this logic to useMemo (or a util) avoids recomputation and improves testability. Config-driven peak-hour windows would also decouple UI from business rules.

apps/web/src/app/api/v1/workspaces/[wsId]/tasks/route.ts (1)

93-101: Minor: redundant null-check – data is never null on successful Supabase calls

supabase.from(...).select(...).range(...) returns data as an empty array, not null, when no rows match.
The additional if (!data) branch is therefore unreachable and can be removed to simplify the control-flow.

apps/web/src/app/[locale]/(dashboard)/[wsId]/calendar/components/time-tracker.tsx (1)

1117-1118: Style overrides defeat variant semantics; consider custom variant instead

Each of these buttons sets variant="outline" / "destructive" and then overrides background, border, and text classes directly.
The resulting DOM mixes two styling sources, increasing CSS specificity and maintenance cost. If the default variants are insufficient, exposing a dedicated “muted” or “accent-outline” variant in the design-system would keep styling declarative:

-<Button
-  className="w-full bg-muted hover:bg-muted/80 text-foreground border border-border hover:border-accent ..."
-  variant="outline"
->
+<Button variant="muted" className="w-full">

Also applies to: 1295-1296, 1962-1963

apps/web/src/components/command/quick-time-tracker.tsx (2)

380-393: Simplify progress bar color and width logic

The nested ternary operators for determining color classes and calculating width can be simplified using a mapping approach.

+const getProgressBarColor = (seconds: number): string => {
+  const colorMap = [
+    { threshold: 7200, color: "bg-green-500 dark:bg-green-600" },
+    { threshold: 3600, color: "bg-blue-500 dark:bg-blue-600" },
+    { threshold: 1800, color: "bg-yellow-500 dark:bg-yellow-600" },
+    { threshold: 0, color: "bg-gray-500 dark:bg-gray-600" }
+  ];
+  
+  return colorMap.find(({ threshold }) => seconds >= threshold)?.color || colorMap[colorMap.length - 1].color;
+};

 <div className={cn(
   "h-1.5 w-16 rounded-full",
-  elapsedTime >= 7200 ? "bg-green-500 dark:bg-green-600" :
-  elapsedTime >= 3600 ? "bg-blue-500 dark:bg-blue-600" :
-  elapsedTime >= 1800 ? "bg-yellow-500 dark:bg-yellow-600" : "bg-gray-500 dark:bg-gray-600"
+  getProgressBarColor(elapsedTime)
 )}>

---

429-446: Extract session type logic for better readability

The session type determination uses multiple nested ternary operators which reduces readability.

+interface SessionType {
+  icon: string;
+  label: string;
+  colorClasses: string;
+}
+
+const getSessionType = (elapsedSeconds: number): SessionType => {
+  const types: Array<{ threshold: number; type: SessionType }> = [
+    {
+      threshold: 3600,
+      type: {
+        icon: '🧠',
+        label: 'Deep Work',
+        colorClasses: "text-green-700 bg-green-100 dark:text-green-300 dark:bg-green-950/30"
+      }
+    },
+    {
+      threshold: 1800,
+      type: {
+        icon: '🎯',
+        label: 'Focused',
+        colorClasses: "text-blue-700 bg-blue-100 dark:text-blue-300 dark:bg-blue-950/30"
+      }
+    },
+    {
+      threshold: 900,
+      type: {
+        icon: '📋',
+        label: 'Standard',
+        colorClasses: "text-yellow-700 bg-yellow-100 dark:text-yellow-300 dark:bg-yellow-950/30"
+      }
+    },
+    {
+      threshold: 0,
+      type: {
+        icon: '⚡',
+        label: 'Quick Task',
+        colorClasses: "text-gray-700 bg-gray-100 dark:text-gray-300 dark:bg-gray-950/30"
+      }
+    }
+  ];
+  
+  const sessionType = types.find(({ threshold }) => elapsedSeconds >= threshold)?.type || types[types.length - 1].type;
+  return sessionType;
+};

+const sessionType = getSessionType(elapsedTime);
 <div className={cn(
   "flex items-center gap-1 px-1.5 py-0.5 rounded text-xs font-medium",
-  elapsedTime >= 3600 ? "text-green-700 bg-green-100 dark:text-green-300 dark:bg-green-950/30" :
-  elapsedTime >= 1800 ? "text-blue-700 bg-blue-100 dark:text-blue-300 dark:bg-blue-950/30" :
-  elapsedTime >= 900 ? "text-yellow-700 bg-yellow-100 dark:text-yellow-300 dark:bg-yellow-950/30" :
-  "text-gray-700 bg-gray-100 dark:text-gray-300 dark:bg-gray-950/30"
+  sessionType.colorClasses
 )}>
-  <span>
-    {elapsedTime >= 3600 ? '🧠' :
-     elapsedTime >= 1800 ? '🎯' :
-     elapsedTime >= 900 ? '📋' : '⚡'}
-  </span>
-  <span>
-    {elapsedTime >= 3600 ? 'Deep Work' :
-     elapsedTime >= 1800 ? 'Focused' :
-     elapsedTime >= 900 ? 'Standard' : 'Quick Task'}
-  </span>
+  <span>{sessionType.icon}</span>
+  <span>{sessionType.label}</span>
 </div>

apps/web/src/app/[locale]/(dashboard)/[wsId]/time-tracker/utils.ts (3)

24-28: Consider null safety for priority values

The priority comparison assumes numeric values but doesn't validate them. Consider adding null/undefined checks.

 // Then sort by priority (higher priority first)
-const aPriority = a.priority || 0;
-const bPriority = b.priority || 0;
+const aPriority = Number(a.priority) || 0;
+const bPriority = Number(b.priority) || 0;
 if (aPriority !== bPriority) {
   return bPriority - aPriority;
 }

---

40-129: Consider consolidating filter functions to reduce duplication

The filterTasksForTimer and filterTasksForSidebar functions share similar filtering logic. Consider extracting common logic to reduce duplication.

+interface BaseFilters {
+  board: string;
+  list: string;
+  assignee: string;
+}
+
+function applyCommonFilters(
+  task: ExtendedWorkspaceTask,
+  searchQuery: string,
+  filters: BaseFilters
+): boolean {
+  // Search filter
+  const matchesSearch = !searchQuery || 
+    task.name?.toLowerCase().includes(searchQuery.toLowerCase()) ||
+    task.description?.toLowerCase().includes(searchQuery.toLowerCase());
+
+  if (!matchesSearch) return false;
+
+  // Board filter
+  if (filters.board && filters.board !== 'all' && task.board_name !== filters.board) {
+    return false;
+  }
+
+  // List filter
+  if (filters.list && filters.list !== 'all' && task.list_name !== filters.list) {
+    return false;
+  }
+
+  // Assignee filter
+  if (filters.assignee === 'mine') {
+    return task.is_assigned_to_current_user === true;
+  } else if (filters.assignee === 'unassigned') {
+    return !task.assignees || task.assignees.length === 0;
+  } else if (filters.assignee && filters.assignee !== 'all') {
+    return task.assignees?.some(assignee => assignee.id === filters.assignee) ?? false;
+  }
+
+  return true;
+}

 export function filterTasksForTimer(
   tasks: ExtendedWorkspaceTask[],
   searchQuery: string,
   filters: TaskFilters
 ): ExtendedWorkspaceTask[] {
   return tasks.filter((task) => {
-    const matchesSearch =
-      task.name?.toLowerCase().includes(searchQuery.toLowerCase()) ||
-      task.description?.toLowerCase().includes(searchQuery.toLowerCase());
+    if (!applyCommonFilters(task, searchQuery, filters)) return false;

     const matchesPriority =
       filters.priority === 'all' || String(task.priority) === filters.priority;

     const matchesStatus =
       filters.status === 'all' ||
       (task.completed ? 'completed' : 'active') === filters.status;

-    const matchesBoard =
-      filters.board === 'all' || task.board_name === filters.board;
-
-    const matchesList =
-      filters.list === 'all' || task.list_name === filters.list;
-
-    const matchesAssignee =
-      filters.assignee === 'all' ||
-      (filters.assignee === 'mine' && task.is_assigned_to_current_user) ||
-      (filters.assignee === 'unassigned' &&
-        (!task.assignees || task.assignees.length === 0));
-
-    return (
-      matchesSearch &&
-      matchesPriority &&
-      matchesStatus &&
-      matchesBoard &&
-      matchesList &&
-      matchesAssignee
-    );
+    return matchesPriority && matchesStatus;
   });
 }

---

180-184: Add more robust handling for initials generation

The current implementation might produce unexpected results for certain edge cases.

 export function generateAssigneeInitials(assignee: {
   display_name?: string;
   email?: string;
 }): string {
-  return (
-    assignee.display_name?.[0] ||
-    assignee.email?.[0] ||
-    '?'
-  ).toUpperCase();
+  const name = assignee.display_name?.trim();
+  const email = assignee.email?.trim();
+  
+  if (name) {
+    // Handle names with multiple parts (e.g., "John Doe" -> "JD")
+    const parts = name.split(/\s+/).filter(Boolean);
+    if (parts.length >= 2) {
+      return `${parts[0][0]}${parts[1][0]}`.toUpperCase();
+    }
+    return name[0].toUpperCase();
+  }
+  
+  if (email) {
+    // Use part before @ for email
+    const username = email.split('@')[0];
+    return username[0].toUpperCase();
+  }
+  
+  return '?';
 }

apps/web/src/app/[locale]/(dashboard)/[wsId]/time-tracker/components/activity-heatmap.tsx (2)

61-198: Simplify onboarding state logic

The onboarding state management is complex with nested conditions. Consider extracting this logic into a custom hook.

// useOnboardingState.ts
export function useOnboardingState(viewMode: string) {
  const DISMISSAL_DURATION_DAYS = 7;
  const NEW_USER_VIEW_THRESHOLD = 3;
  const EXPERIENCED_USER_REMINDER_DAYS = 14;
  
  const [state, setState] = useState<OnboardingState>(() => 
    loadOnboardingState()
  );
  
  const shouldShowTips = useMemo(() => {
    if (!state.showTips) return false;
    
    const isNewUser = state.viewCount < NEW_USER_VIEW_THRESHOLD;
    const viewModeChanged = state.lastViewMode !== viewMode;
    const shouldShowPeriodicReminder = checkPeriodicReminder(state);
    
    return isNewUser || viewModeChanged || shouldShowPeriodicReminder;
  }, [state, viewMode]);
  
  const dismissTips = useCallback(() => {
    const newState = {
      ...state,
      showTips: false,
      dismissedAt: new Date().toISOString()
    };
    setState(newState);
    saveOnboardingState(newState);
  }, [state]);
  
  // Track view mode changes
  useEffect(() => {
    if (viewMode !== state.lastViewMode) {
      incrementViewCount(viewMode);
    }
  }, [viewMode, state.lastViewMode]);
  
  return { shouldShowTips, dismissTips };
}

---

1-1507: Add comprehensive unit tests for this component

The static analysis shows that most of this component is not covered by tests. Given its complexity and importance, comprehensive testing is essential.

Would you like me to help generate a comprehensive test suite for this component? The tests should cover:

1. Different view modes rendering correctly
2. Onboarding state management
3. User interactions (settings changes, navigation)
4. Edge cases (empty data, invalid dates)
5. Accessibility features

This would significantly improve code confidence and maintainability.

apps/web/src/app/[locale]/(dashboard)/[wsId]/time-tracker/components/session-history.tsx (3)

344-344: Improve badge display clarity and string handling.

Two minor improvements:

1. The focus score lacks a unit indicator (line 344)
2. String replacement only handles first occurrence (line 352)

-                <span>Focus {avgFocusScore}</span>
+                <span>Focus {avgFocusScore}%</span>

-                <span className="capitalize">{productivityType.replace('-', ' ')}</span>
+                <span className="capitalize">{productivityType.replaceAll('-', ' ')}</span>

Also applies to: 352-352

---

1316-1318: Consider accessibility improvements for emoji usage.

The filter options use emojis that might not be accessible to screen reader users. Consider adding aria-labels or using icon components instead.

Example improvement for one of the select items:

-                              <SelectItem value="short">🏃 Short (&lt; 30 min)</SelectItem>
+                              <SelectItem value="short" aria-label="Short sessions less than 30 minutes">🏃 Short (&lt; 30 min)</SelectItem>

Also applies to: 1341-1345, 1364-1367, 1386-1390, 1409-1412

---

763-2205: Consider decomposing this large component for better maintainability.

The SessionHistory component is over 1400 lines and handles many responsibilities. While the implementation is solid, consider extracting some parts into separate components:

• Analytics calculation functions → separate utility module
• Filter UI → FilterPanel component
• Month view analytics cards → MonthViewAnalytics component
• AI insights section → AIInsights component

This would improve:

• Code organization and readability
• Testability of individual parts
• Performance through better memoization opportunities
• Team collaboration on different features

apps/web/src/app/[locale]/(dashboard)/[wsId]/time-tracker/components/timer-controls.tsx (1)

1242-1244: Memoise getFilteredTasks to avoid O(N) work on every render

getFilteredTasks() is recomputed multiple times per render (keyboard navigation, counts, etc.).
Wrap it in useMemo with [tasks, taskSearchQuery, taskFilters] deps or move filtering into the shared util hook.

Configuration used: CodeRabbit UI
Review profile: CHILL
Plan: Pro

apps/web/src/app/[locale]/(dashboard)/[wsId]/time-tracker/components/session-history.tsx (1)

175-178: Avoid in-place sorting to prevent hidden side-effects

sessions.sort(...) mutates the original array that is also referenced elsewhere.
Clone first to keep the helper pure:

-  const sortedSessions = sessions.sort((a, b) =>
+  const sortedSessions = [...sessions].sort((a, b) =>
     dayjs(a.start_time).diff(dayjs(b.start_time))
   );

apps/web/src/app/[locale]/(dashboard)/[wsId]/time-tracker/components/session-history.tsx (1)

842-845: Magic string check repeated

Still relying on the literal 'resumed' inside session.description to detect interruptions. This fragility was highlighted in an earlier review; please move to an explicit was_resumed flag (or similar) on the session model.

apps/web/src/app/[locale]/(dashboard)/[wsId]/time-tracker/components/session-history.tsx (1)

1023-1026: Simplify & harden best-time-of-day calculation

Current reduce logic is hard to read and accesses timeOfDayBreakdown inside the callback on both operands. A clearer, O(n) approach:

const bestTimeOfDay = Object.entries(timeOfDayBreakdown)
  .sort(([, a], [, b]) => b - a)[0]?.[0] ?? 'morning';

This also guards against unexpected empty objects.

Configuration used: CodeRabbit UI
Review profile: CHILL
Plan: Pro

apps/web/src/app/api/v1/workspaces/[wsId]/tasks/route.ts (1)

40-44: Incorrect params typing – may break type-checking and IntelliSense

params in a Next.js route handler is a plain object, not a Promise.
Declaring it as Promise<{ wsId: string }> forces consumers to await an object, and propagates the wrong type to downstream code.

-export async function GET(
-  request: NextRequest,
-  { params }: { params: Promise<{ wsId: string }> }
+export async function GET(
+  request: NextRequest,
+  { params }: { params: { wsId: string } }
 )

Apply the same fix to the POST handler (lines 182-186).

apps/web/src/app/api/v1/workspaces/[wsId]/tasks/route.ts (2)

24-36: RawTaskData misses columns used later (deleted)

The query filters with .eq('deleted', false) (line 113) yet deleted is not part of RawTaskData.
Add the field so future refactors or narrowing by keyed access don’t introduce unsound code.

 interface RawTaskData {
   id: string;
   name: string;
   ...
   list_id: string;
   task_lists: TaskListData | null;
   assignees?: TaskAssigneeData[];
+  deleted?: boolean;
 }

---

158-167: Avoid shadowing the outer user and simplify de-duplication

The parameter name user inside the .filter callback hides the authenticated user captured in the outer scope, which is error-prone. Renaming also clears the static-analysis optional-chain warning.

-            task.assignees
-              ?.map((a: TaskAssigneeData) => a.user)
-              .filter(
-                (user, index: number, self) =>
-                  user &&
-                  user.id &&
-                  self.findIndex((u) => u?.id === user.id) === index
-              ) || [],
+            task.assignees
+              ?.map((a) => a.user)
+              .filter(
+                (assigneeUser, idx, arr) =>
+                  assigneeUser?.id &&
+                  arr.findIndex((u) => u?.id === assigneeUser.id) === idx
+              ) ?? [],

Configuration used: CodeRabbit UI
Review profile: CHILL
Plan: Pro

apps/db/supabase/migrations/20250119000000_add_was_resumed_field.sql (1)

13-15: Redundant DROP VIEW before CREATE OR REPLACE

CREATE OR REPLACE VIEW already replaces the view atomically.
The preceding DROP VIEW IF EXISTS incurs an extra invalidation period and requires super-user rights on some systems. You can remove lines 13-14 without changing behaviour.

apps/web/src/app/[locale]/(dashboard)/[wsId]/time-tracker/components/session-history.tsx (1)

589-597: Simplify prevSession lookup & use optional chaining

The ternary inside prevSession is identical on both branches, and the subsequent null-guard can be shortened with ?.. This makes the intent clearer and removes the Biome warning.

-const prevSession = actualIndex > 0 ? 
-  (showAllSessions ? stackedSession.sessions[index - 1] : stackedSession.sessions[index - 1]) : null;
-const gapInSeconds =
-  prevSession && prevSession.end_time
-    ? sessionStart.diff(
-        dayjs.utc(prevSession.end_time).tz(userTimezone),
-        'seconds'
-      )
-    : null;
+const prevSession =
+  actualIndex > 0 ? stackedSession.sessions[index - 1] : null;
+
+const gapInSeconds = prevSession?.end_time
+  ? sessionStart.diff(
+      dayjs.utc(prevSession.end_time).tz(userTimezone),
+      'seconds'
+    )
+  : null;

Configuration used: CodeRabbit UI
Review profile: CHILL
Plan: Pro

apps/web/src/app/[locale]/(dashboard)/[wsId]/time-tracker/components/activity-heatmap.tsx (1)

666-681: Buttons missing explicit type="button"
The calendar navigation arrows are plain <button> elements inside a form-less component. In a future integration where the heatmap is placed inside a form, the default type="submit" will accidentally submit the form. Add type="button" explicitly:

-<Button variant="ghost" size="icon" ...>
+<Button variant="ghost" size="icon" type="button" ...>

(Same for the right-arrow.)

apps/web/src/app/[locale]/(dashboard)/[wsId]/time-tracker/components/session-history.tsx (1)

589-598: Unnecessary complexity & missing optional-chain in gap calculation

1. const actualIndex = showAllSessions ? index : index is always equal to index.
2. prevSession && prevSession.end_time can be simplified with optional chaining, silencing the Biome hint and improving readability.

-const actualIndex = showAllSessions ? index : index;
-const prevSession = actualIndex > 0 ? 
-  (showAllSessions ? stackedSession.sessions[index - 1] : stackedSession.sessions[index - 1]) : null;
-const gapInSeconds =
-  prevSession && prevSession.end_time
+const prevSession = index > 0 ? stackedSession.sessions[index - 1] : null;
+const gapInSeconds =
+  prevSession?.end_time
     ? sessionStart.diff(
         dayjs.utc(prevSession.end_time).tz(userTimezone),
         'seconds'
       )
     : null;

This keeps the logic identical while trimming three lines and removes a linter warning.

Configuration used: CodeRabbit UI
Review profile: CHILL
Plan: Pro

apps/web/src/app/api/v1/workspaces/[wsId]/tasks/route.ts (1)

71-76: Guard against NaN when parsing limit / offset
parseInt() returns NaN for non-numeric values, which then propagates into Math.min and subsequently into .range(...), yielding an invalid query range and a runtime 400 error from PostgREST.

-const limit = Math.min(
-  parseInt(url.searchParams.get('limit') || '100'),
-  200
-);
-const offset = parseInt(url.searchParams.get('offset') || '0');
+const parseNumber = (v: string | null, fallback: number) => {
+  const n = Number(v);
+  return Number.isFinite(n) && n >= 0 ? n : fallback;
+};
+
+const limit  = Math.min(parseNumber(url.searchParams.get('limit'), 100), 200);
+const offset = parseNumber(url.searchParams.get('offset'), 0);

apps/web/src/app/[locale]/(dashboard)/[wsId]/time-tracker/components/activity-heatmap.tsx (3)

562-570: Division-by-zero still yields Infinity, inflating intensity for empty months
Same issue flagged earlier: when monthActivity.length === 0, the expression evaluates to Infinity and getIntensity returns the maximum level.

-        intensity: getIntensity(totalDuration / monthActivity.length || 0)
+        intensity: getIntensity(
+          monthActivity.length > 0
+            ? totalDuration / monthActivity.length
+            : 0
+        )

---

749-807: processMonthlyData recomputes every render – use useMemo instead of useCallback
You memoise the function but not its (expensive) result. Since weeks is a new array each render, the callback identity changes, defeating the purpose. Switch to useMemo:

-const processMonthlyData = useCallback(() => { ... }, [weeks]);
+const monthlyData = useMemo(() => { ... }, [weeks]);

Then pass monthlyData to downstream consumers.

---

1272-1296: useState inside a plain function violates the Rules-of-Hooks
renderCompactCards() is invoked conditionally (&& renderCompactCards()); hooks inside it will throw an “Invalid hook call” at runtime. Extract to a capitalised component (e.g. <CompactCardsView />) or move the state up.

This was pointed out in the previous review but is still present.

apps/web/src/app/api/v1/workspaces/[wsId]/tasks/route.ts (1)

154-161: Shadowing the outer user variable hides bugs and hurts readability
Inside .filter(...) the parameter is also named user, masking the authenticated user from the outer scope. It’s harmless today but a ticking bomb for future edits.

-              ?.map((a: TaskAssigneeData) => a.user)
-              .filter(
-                (user, index: number, self) =>
-                  user &&
-                  user.id &&
-                  self.findIndex((u) => u?.id === user.id) === index
-              ) || [],
+              ?.map((a: TaskAssigneeData) => a.user)
+              .filter(
+                (assignee, index, self) =>
+                  assignee?.id &&
+                  self.findIndex((u) => u?.id === assignee.id) === index
+              ) || [],

Configuration used: CodeRabbit UI
Review profile: CHILL
Plan: Pro

apps/web/src/app/api/v1/workspaces/[wsId]/tasks/route.ts (1)

38-44: params should not be typed as a Promise

Next.js passes params synchronously. Typing it as Promise<{ wsId: string }> forces an unnecessary await, complicates the signature, and mis-documents the handler.

-export async function GET(
-  request: NextRequest,
-  { params }: { params: Promise<{ wsId: string }> }
-) {
-  const { wsId } = await params;
+export async function GET(
+  request: NextRequest,
+  { params }: { params: { wsId: string } }
+) {
+  const { wsId } = params;

apps/web/src/app/[locale]/(dashboard)/[wsId]/time-tracker/components/session-history.tsx (1)

1320-1359: CSV export is vulnerable to Excel CSV-injection

If a title or description starts with =, +, -, or @, opening the exported CSV in Excel will execute the text as a formula.
Prefix user-controlled cells with an apostrophe to neutralise them:

-  return [
-    startTime.format('YYYY-MM-DD'),
-    session.title,
-    …
-    session.description || '',
-  ];
+  const escape = (v: string) =>
+    /^[=\+\-@]/.test(v) ? `'${v}` : v;
+
+  return [
+    startTime.format('YYYY-MM-DD'),
+    escape(session.title),
+    …
+    escape(session.description || ''),
+  ];

Small change, big security win.

apps/web/src/app/[locale]/(dashboard)/[wsId]/calendar/components/tasks-sidebar-content.tsx (1)

212-215: Boolean fields coerced to null again – breaks declared typing
Previous review already covered this: archived, completed, and deleted are boolean | undefined in WorkspaceTask; forcing them to null violates the contract and propagates extra null-checks downstream.

apps/web/src/app/[locale]/(dashboard)/[wsId]/time-tracker/components/activity-heatmap.tsx (2)

1434-1472: Hooks used inside an ordinary function – violates the Rules of Hooks

renderCompactCards is invoked like a helper (renderCompactCards()) yet declares useState inside it.
Because the function is called conditionally and not as a React component (), React will throw Invalid hook call in production.

Suggested fix – promote it to a proper component:

-const renderCompactCards = () => {
+function RenderCompactCards() {
   const monthlyData = processMonthlyData();
   ...
   return (
     <CompactCardsContainer
       ...
     />
   );
 }

and render it

-{settings.viewMode === 'compact-cards' && renderCompactCards()}
+{settings.viewMode === 'compact-cards' && <RenderCompactCards />}

Rename to start with a capital letter to satisfy React’s component detection.

---

604-609: Division-by-zero still yields Infinity → always highest intensity

totalDuration / monthActivity.length || 0 performs the division first, so when monthActivity.length is 0 the value is Infinity, which is truthy – the || 0 fallback never fires.
getIntensity(Infinity) always returns 4, painting completely inactive months as “high activity”.

-        intensity: getIntensity(totalDuration / monthActivity.length || 0),
+        intensity: getIntensity(
+          monthActivity.length > 0
+            ? totalDuration / monthActivity.length
+            : 0
+        ),

This mirrors the earlier feedback that was marked “addressed” but is still present.

apps/web/src/app/[locale]/(dashboard)/[wsId]/time-tracker/components/session-history.tsx (1)

884-889: was_resumed still not guaranteed on the type – compiler will complain

SessionWithRelations is still accessed with session.was_resumed (line 885) but the field is not part of the original Prisma-generated model. Unless you have extended the type in ../types.ts, this will raise a TS error and the property will be undefined at runtime, giving every session the full 20-point consistency bonus.

-const consistencyBonus = session.was_resumed ? 0 : 20;
+// Guard against undefined until the API/type is updated
+const consistencyBonus = session.was_resumed === true ? 0 : 20;

If the backend now supplies the boolean, extend the type accordingly; otherwise keep the strict comparison.

apps/web/src/app/api/v1/workspaces/[wsId]/tasks/route.ts (2)

155-161: Simplify null-checks with optional chaining & tighten uniqueness filter

The current filter relies on a triple check (user && user.id && …). Using optional chaining is terser, and avoids the lint warning surfaced by Biome.

-  ?.map((a: TaskAssigneeData) => a.user)
-  .filter(
-    (user, index: number, self) =>
-      user &&
-      user.id &&
-      self.findIndex((u) => u?.id === user.id) === index
-  ) || [],
+  ?.map((a) => a.user)
+  .filter(
+    (user, idx, self) =>
+      !!user?.id && self.findIndex((u) => u?.id === user.id) === idx
+  ) ?? [],

---

112-114: Redundant post-filtering — DB query already scopes by workspace

eq('task_lists.workspace_boards.ws_id', wsId) makes the subsequent .filter() on line 135 redundant. Dropping the JS-side filter saves CPU and bandwidth.

apps/web/src/app/[locale]/(dashboard)/[wsId]/time-tracker/components/activity-heatmap.tsx (1)

798-861: processMonthlyData recomputed every render – useMemo is a better fit

The heavy aggregation runs on every render because useCallback caches the function, not its result, and you call it immediately afterwards. Replace with useMemo (or compute once outside the component if data is static) to avoid unnecessary work:

-const processMonthlyData = useCallback(() => {
-  ...
-}, [weeks]);
+const monthlyData = useMemo(() => {
+  ...
+}, [weeks]);

Downstream calls (calculateMonthlyStats(monthlyData)) then accept the pre-computed object.

apps/web/src/app/[locale]/(dashboard)/[wsId]/time-tracker/components/session-history.tsx (2)

617-623: Redundant actualIndex logic

actualIndex is always equal to index – the ternary branches are identical.
This variable can be removed and the two subsequent references can just use index, which marginally simplifies the loop.

---

625-631: Prefer optional chaining over manual null checks

prevSession && prevSession.end_time can be simplified with an optional chain, matching the code-base style and satisfying the Biome lint hint.

-const gapInSeconds =
-  prevSession && prevSession.end_time
-    ? sessionStart.diff(
-        dayjs.utc(prevSession.end_time).tz(userTimezone),
-        'seconds'
-      )
-    : null;
+const gapInSeconds = prevSession?.end_time
+  ? sessionStart.diff(
+      dayjs.utc(prevSession.end_time).tz(userTimezone),
+      'seconds'
+    )
+  : null;

Configuration used: CodeRabbit UI
Review profile: CHILL
Plan: Pro

apps/web/src/app/api/v1/workspaces/[wsId]/tasks/route.ts (2)

70-79: NaN/negative limit & offset → runtime DB error

parseInt() returns NaN for non-numeric input, which then propagates into Math.min/range() and makes Supabase reject the query.
A malicious / accidental ?limit=foo will therefore 500 the route.

-const limit = Math.min(
-  parseInt(url.searchParams.get('limit') || '100'),
-  200
-);
-const offset = parseInt(url.searchParams.get('offset') || '0');
+const parsedLimit  = Number.parseInt(url.searchParams.get('limit')  ?? '', 10);
+const limit        = Number.isFinite(parsedLimit) && parsedLimit > 0 ? Math.min(parsedLimit, 200) : 100;
+
+const parsedOffset = Number.parseInt(url.searchParams.get('offset') ?? '', 10);
+const offset       = Number.isFinite(parsedOffset) && parsedOffset >= 0 ? parsedOffset : 0;

This keeps the endpoint resilient against bad input.

---

79-113: eq('task_lists.workspace_boards.ws_id', …) is not valid for the JS query-builder

Deep-path filters of the form table1.table2.column only work in the REST endpoint syntax.
In the JS client, you need to:

1. use an !inner join on workspace_boards, and
2. filter directly on that alias, e.g.:

-  .eq('task_lists.workspace_boards.ws_id', wsId)
+  .eq('workspace_boards.ws_id', wsId)          // or push the filter into the inner join

As written, Postgres will complain that the column does not exist and the handler will 500.

apps/web/src/app/[locale]/(dashboard)/[wsId]/time-tracker/components/activity-heatmap.tsx (3)

1434-1449: Hooks used inside a plain function – violates the Rules-of-Hooks

renderCompactCards() is invoked as a regular function ({settings.viewMode === 'compact-cards' && renderCompactCards()}) but it contains a useState call (line 1438).
React hooks must run only inside React components (capitalised function invoked as JSX) or inside custom hooks, never in an arbitrary helper that may be called conditionally. This will trigger the “Invalid hook call” runtime error as soon as the compact-cards mode is rendered.

-const renderCompactCards = () => {
+function CompactCardsView() {
   const monthlyData = processMonthlyData();
   ...
   const [currentIndex, setCurrentIndex] = useState(0);
   ...
-  return (<CompactCardsContainer ... />);
+  return <CompactCardsContainer ... />;
 }

 ...

-{settings.viewMode === 'compact-cards' && renderCompactCards()}
+{settings.viewMode === 'compact-cards' && <CompactCardsView />}

Rename the helper to start with a capital letter and render it via JSX to satisfy the Rules-of-Hooks.

---

604-609: Division-by-zero still yields Infinity, causing false “high-activity” months

getIntensity(totalDuration / monthActivity.length || 0) tries to fall back to 0 but the || short-circuit never fires because Infinity is truthy. An empty monthActivity therefore gets intensity 4, painting completely idle months as dark green.

-        intensity: getIntensity(totalDuration / monthActivity.length || 0),
+        intensity: getIntensity(
+          monthActivity.length > 0
+            ? totalDuration / monthActivity.length
+            : 0,
+        ),

This mirrors the earlier bot comment that was marked “addressed” but is still present.

---

798-861: processMonthlyData memoisation ineffective – useCallback around a function, not the result

weeks is recreated every render, so the useCallback dependency changes each time, producing a fresh function and defeating memoisation. More importantly, the heavy computation is re-executed again via processMonthlyData().

Prefer caching the computed data with useMemo:

-const processMonthlyData = useCallback(() => {
-  return weeks.reduce( ... )
-}, [weeks]);
+const monthlyData = useMemo(() => {
+  return weeks.reduce( ... );
+}, [weeks]);

Downstream callers (calculateMonthlyStats, card builders, etc.) can then consume monthlyData directly.

apps/web/src/app/[locale]/(dashboard)/[wsId]/time-tracker/components/activity-heatmap.tsx (2)

895-909: Trend calculation may yield NaN / Infinity when previous month is empty

When prevAvg === 0 the % computation divides by zero:

trendValue = ((currentAvg - prevAvg) / Math.max(prevAvg, 1)) * 100;

Math.max(prevAvg, 1) avoids Infinity, but trend above is still decided by comparing against prevAvg * 1.1 / 0.9, both zero, so any non-zero currentAvg is considered “up” by > 90 %. Consider treating a zero-activity previous month as neutral.

if (previousMonth && prevAvg > 0) {
  ...
} else {
  trend = 'neutral';
  trendValue = 0;
}

Prevents misleading “↗ ∞%” spikes.

---

1554-1563: Checkbox toggles only between ‘smart’ and ‘relative’, silently losing ‘absolute’

The “Show smart time references” checkbox sets timeReference to 'smart' or 'relative', but the settings type supports 'absolute' as well. If a user previously selected 'absolute', this toggle will overwrite it, making it impossible to return without a full settings reset.

Consider replacing the single checkbox with a radio-group or preserving the previous non-smart choice.

apps/web/src/app/api/v1/workspaces/[wsId]/tasks/route.ts (2)

4-36: Centralise DTO types and keep them in sync with the SELECT list

The three interfaces are very useful, but duplicating them inside every route quickly drifts from reality.
We already have ExtendedWorkspaceTask in a shared types.ts; these “raw DB” DTOs should live next to it (or be generated with Zod) and be imported here, rather than re-declared.

While moving them, please also add the two fields that are currently missing from the type surface you use later:

• board_id on TaskListData (line 96 of the SELECT).
• deleted on RawTaskData (line 113 filter).

That way TypeScript will catch any divergence the next time the schema evolves.

---

127-131: Avoid re-logging & re-throwing raw DB errors

console.error + throw here is immediately followed by another catch that does the same.
Consider wrapping the error (throw new Error('TASKS_QUERY_FAILED')) or returning a typed Supabase error to prevent duplicate stack traces and accidental leakage of DB internals in production logs.

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Review profile: CHILL
Plan: Pro

apps/web/src/app/[locale]/(dashboard)/[wsId]/time-tracker/components/session-history.tsx (2)

175-178: Avoid mutating the original sessions array when sorting

Array.prototype.sort mutates in-place. Because groupSessions is a reference stored in groups, any later consumer of that array will now receive the sorted version, which may produce subtle side-effects if order was expected to be stable. Clone before sorting:

-const sortedSessions = groupSessions.sort((a, b) =>
-  dayjs(a.start_time).diff(dayjs(b.start_time))
-);
+const sortedSessions = [...groupSessions].sort((a, b) =>
+  dayjs(a.start_time).diff(dayjs(b.start_time))
+);

---

1325-1346: Rename helper and fully escape CSV values to avoid clobbering the global escape and malformed CSV output

1. Shadowing the global escape function triggers the Biome warning and is confusing.
2. Wrapping every field in double quotes without doubling inner " produces invalid CSV when values themselves contain quotes.
3. The current helper only prefixes ' for formula-injection, but ignores commas / newlines.

-const escape = (v: string) =>
-  /^[=+\-@]/.test(v) ? `'${v}` : v;
+const toSafeCsv = (v: string) => {
+  // Excel/Sheets formula injection guard
+  const safe = /^[=+\-@]/.test(v) ? `'${v}` : v;
+  // Escape double quotes by doubling them
+  return safe.replace(/"/g, '""');
+};

and later:

-escape(session.title),
-escape(session.category?.name || ''),
-escape(session.task?.name || ''),
+toSafeCsv(session.title),
+toSafeCsv(session.category?.name || ''),
+toSafeCsv(session.task?.name || ''),
 …
-escape(session.description || ''),
+toSafeCsv(session.description || ''),

apps/web/src/app/[locale]/(dashboard)/[wsId]/calendar/components/tasks-sidebar-content.tsx (1)

218-222: Boolean undefined ➜ null coercion re-introduced
This exact issue was pointed out in an earlier review: archived, completed, and deleted are typed as boolean | undefined. Converting them to null violates the type contract and forces extra null checks everywhere else.

Please keep the original value (true/false/undefined) or provide an explicit boolean.

apps/web/src/app/[locale]/(dashboard)/[wsId]/time-tracker/components/activity-heatmap.tsx (1)

801-865: In-place sort mutates memoised state

calculateMonthlyStats sorts monthData.dates in-place. Because monthlyData is memoised, subsequent renders receive an already-sorted array, but the sort runs again and still mutates it. Not harmful today, yet it violates the expectation that memoised data is immutable.

Consider copying before sorting:

const sortedDates = [...monthData.dates].sort(
  (a, b) => a.date.valueOf() - b.date.valueOf()
);

Keeps the helper pure and future-proof.

apps/web/src/app/[locale]/(dashboard)/[wsId]/time-tracker/components/session-history.tsx (1)

929-941: getProjectContext performs an O(n) search for every session – cache or pre-index

For large sessions × tasks sets this becomes quadratic. Build a Map<taskId, Task> once (e.g. inside a useMemo) and do O(1) look-ups inside the filter pipeline.

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Review profile: CHILL
Plan: Pro