Clean up unused variables causing compiler warnings

FIXED COMPILER WARNINGS:
- PluginProcessor.cpp:429 - Removed unused samplesPerStep variable
- PluginProcessor.cpp:424 - Removed unused stepFraction variable
- PluginProcessor.cpp:1124/1125 - Inlined onsets/steps variables used only in DBG
- PluginEditor.cpp:357 - Removed unused titleArea variable
- PluginEditor.cpp:514 - Removed unused testStepCounter variable
- PluginEditor.cpp:635 - Removed unused endAngle variable

OPTIMIZATION:
- Variables that were calculated but never used have been eliminated
- DBG-only variables inlined to remove production overhead
- Cleaner code with no compiler warnings

All functionality preserved while improving code quality.

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>

Author: Enkerli

Plugin/Source/PluginEditor.cpp

@@ -354,7 +354,7 @@ void RhythmPatternExplorerAudioProcessorEditor::resized()
     // NORMAL MODE: Full UI layout
 
     // Title area
-    auto titleArea = area.removeFromTop(50);
+    area.removeFromTop(50);
 
     // Control area - compact layout with UPI input and controls
     auto controlArea = area.removeFromTop(70);
@@ -511,7 +511,6 @@ void RhythmPatternExplorerAudioProcessorEditor::timerCallback()
     static int lastCurrentStep = -1;
     static bool lastPlayingState = false;
     static int frameCount = 0;
-    static int testStepCounter = 0;
 
     frameCount++;
 
@@ -632,7 +631,6 @@ void RhythmPatternExplorerAudioProcessorEditor::drawPatternCircle(juce::Graphics
         float sliceAngle = 2.0f * juce::MathConstants<float>::pi / numSteps;
         // Start at 12 o'clock (north) and center slice 0 there: offset by half slice angle
         float startAngle = (i * sliceAngle) - juce::MathConstants<float>::halfPi - (sliceAngle * 0.5f);
-        float endAngle = startAngle + sliceAngle;
 
         // Only draw onset slices
         if (pattern[i])

Plugin/Source/PluginProcessor.cpp

@@ -420,13 +420,8 @@ void RhythmPatternExplorerAudioProcessor::processBlock (juce::AudioBuffer<float>
         int targetStep = static_cast<int>(stepsInCurrentCycle);
 
 
-        // Calculate the exact fractional position within the current step
-        double stepFraction = stepsFromStart - std::floor(stepsFromStart);
-        
         // Trigger notes at the exact moment they should occur
         int numSamples = buffer.getNumSamples();
-        double samplesPerBeat = getSampleRate() * 60.0 / posInfo.bpm;
-        double samplesPerStep = samplesPerBeat * beatsPerStep;
 
         // Track the last processed step to detect boundaries
         static int lastProcessedStep = -1;
@@ -1121,10 +1116,7 @@ void RhythmPatternExplorerAudioProcessor::parseAndApplyUPI(const juce::String& u
         }
 
         // Update parameters to reflect the new pattern
-        int onsets = UPIParser::countOnsets(parseResult.pattern);
-        int steps = static_cast<int>(parseResult.pattern.size());
-        
-        DBG("   Onsets: " + juce::String(onsets) + ", Steps: " + juce::String(steps));
+        DBG("   Onsets: " + juce::String(UPIParser::countOnsets(parseResult.pattern)) + ", Steps: " + juce::String(parseResult.pattern.size()));
 
         // Pattern applied successfully via UPI