fixed indexing on feedback

AGENTS.md

@@ -1052,3 +1052,36 @@ The API call sequence has been successfully optimized to:
 3. Generate new feedback words after user rating
 4. Refresh all UI elements
 
+## Feedback Historic Indexing Bug Fix ✓ COMPLETED
+
+### Problem Identified
+The `feedback_historic.json` cyclic buffer had duplicate keys (`feedback00` to `feedback05`) repeated throughout the 30-item buffer instead of having unique keys (`feedback00` to `feedback29`).
+
+### Root Cause
+The `_generate_and_insert_new_feedback_words()` method in `PromptService` was always generating keys `feedback00` to `feedback05` when inserting new items at position 0, creating duplicate keys in the buffer.
+
+### Solution Implemented
+1. **Updated `_generate_and_insert_new_feedback_words()` method**:
+   - Added re-keying logic that assigns unique keys based on position in buffer
+   - After inserting new items, re-keys all items from `feedback00` to `feedback29`
+   - Preserves word and weight data during re-keying
+
+2. **Updated `update_feedback_words()` method**:
+   - Modified to preserve existing keys when updating weights
+   - Extracts existing key from current item instead of generating new one
+   - Maintains backward compatibility with existing data structure
+
+### Technical Details
+- **Before**: Keys `feedback00`-`feedback05` repeated, causing duplicate keys
+- **After**: Unique sequential keys `feedback00`-`feedback29` (or less if buffer not full)
+- **Data Structure**: Each item now has format `{"feedbackXX": "word", "weight": N}` with unique XX values
+- **Buffer Management**: Proper cyclic buffer behavior with 30-item limit maintained
+
+### Verification
+- ✅ All 30 items in buffer now have unique keys (`feedback00` to `feedback29`)
+- ✅ No duplicate keys after feedback rating operations
+- ✅ Data integrity preserved (words and weights maintained)
+- ✅ Backward compatibility maintained with existing frontend
+- ✅ Cyclic buffer functionality preserved (oldest items removed when buffer full)
+
+The bug has been successfully fixed, ensuring proper cyclic buffer operation with unique keys throughout the feedback history.