test: enhance cache spec to handle file permission errors gracefully

Author: mickael-palma-wttj

.devcontainer/devcontainer.json

@@ -0,0 +1,3 @@
+{
+  "image": "mcr.microsoft.com/devcontainers/ruby:3.3"
+}

.devcontainer/launch.json

@@ -0,0 +1,55 @@
+{
+  // Ruby debugging configurations for devcontainer environment
+  // These configurations require Ruby debugging extensions to be installed
+  "version": "0.2.0",
+  "configurations": [
+    {
+      "name": "Debug Kanban Metrics (Ruby)",
+      "type": "rdbg",
+      "request": "launch",
+      "script": "${workspaceFolder}/bin/kanban_metrics",
+      "args": [],
+      "cwd": "${workspaceFolder}",
+      "useBundler": true
+    },
+    {
+      "name": "Debug Kanban Metrics with Args (Ruby)",
+      "type": "rdbg",
+      "request": "launch",
+      "script": "${workspaceFolder}/bin/kanban_metrics",
+      "args": [
+        "--format",
+        "json",
+        "--team-metrics"
+      ],
+      "cwd": "${workspaceFolder}",
+      "useBundler": true
+    },
+    {
+      "name": "Debug RSpec Tests (Ruby)",
+      "type": "rdbg",
+      "request": "launch",
+      "script": "rspec",
+      "args": [
+        "${file}"
+      ],
+      "cwd": "${workspaceFolder}",
+      "useBundler": true
+    },
+    {
+      "name": "Debug All RSpec Tests (Ruby)",
+      "type": "rdbg",
+      "request": "launch",
+      "script": "rspec",
+      "args": [],
+      "cwd": "${workspaceFolder}",
+      "useBundler": true
+    },
+    {
+      "name": "Attach Ruby Debugger",
+      "type": "rdbg",
+      "request": "attach",
+      "localfs": true
+    }
+  ]
+}

.vscode/launch.json

@@ -0,0 +1,19 @@
+{
+  // VS Code Launch Configuration for Linear Kanban Metrics
+  // Note: Ruby debugging configurations require the devcontainer environment
+  // with Ruby debugger extensions installed. Use the devcontainer for full debugging support.
+  "version": "0.2.0",
+  "configurations": [
+    {
+      "name": "Launch Kanban Metrics (Terminal)",
+      "type": "node",
+      "request": "launch",
+      "program": "${workspaceFolder}/bin/kanban_metrics",
+      "cwd": "${workspaceFolder}",
+      "console": "integratedTerminal",
+      "skipFiles": [
+        "<node_internals>/**"
+      ]
+    }
+  ]
+}

.vscode/settings.json

@@ -0,0 +1,59 @@
+{
+  "ruby.useLanguageServer": true,
+  "ruby.lint": {
+    "rubocop": {
+      "useBundler": true
+    }
+  },
+  "ruby.format": "rubocop",
+  "files.associations": {
+    "Gemfile": "ruby",
+    "Guardfile": "ruby",
+    ".env": "dotenv",
+    ".env.*": "dotenv"
+  },
+  "files.watcherExclude": {
+    "**/tmp/**": true,
+    "**/coverage/**": true,
+    "**/reports/**": true,
+    "**/.git/**": true,
+    "**/node_modules/**": true,
+    "**/vendor/bundle/**": true
+  },
+  "search.exclude": {
+    "**/tmp/**": true,
+    "**/coverage/**": true,
+    "**/reports/**": true,
+    "**/vendor/bundle/**": true
+  },
+  "files.exclude": {
+    "**/tmp/**": false,
+    "**/coverage/**": false,
+    "**/reports/**": false
+  },
+  "terminal.integrated.defaultProfile.linux": "bash",
+  "terminal.integrated.defaultProfile.osx": "zsh",
+  "ruby.intellisense": "rubyLsp",
+  "ruby.rubocop.useBundler": true,
+  "ruby.rubocop.configFilePath": ".rubocop.yml",
+  "editor.formatOnSave": true,
+  "editor.formatOnType": false,
+  "[ruby]": {
+    "editor.defaultFormatter": "Shopify.ruby-lsp",
+    "editor.formatOnSave": true,
+    "editor.tabSize": 2,
+    "editor.insertSpaces": true,
+    "editor.rulers": [
+      120
+    ]
+  },
+  "[json]": {
+    "editor.defaultFormatter": "vscode.json-language-features"
+  },
+  "[markdown]": {
+    "editor.defaultFormatter": "vscode.markdown-language-features"
+  },
+  "rspec.command": "bundle exec rspec",
+  "rspec.format": "documentation",
+  "test.defaultGuttterClickAction": "run"
+}