chore: add .gitignore, remove __pycache__ and temp files from tracking

- Add .gitignore: excludes __pycache__, .venv, .env, *.pyc, .pytest_cache
- Remove all __pycache__ .pyc files from git tracking (keep on disk)
- Delete DEPLOYMENT_FIXES.md (temp doc)
- Delete upgrade_dependencies.sh (temp script)

.gitignore

@@ -0,0 +1,21 @@
+# Python bytecode
+__pycache__/
+*.py[cod]
+*.pyo
+*.pyc
+
+# Virtual environment
+.venv/
+venv/
+env/
+
+# Environment files with secrets
+.env
+
+# Test/debug artifacts
+*.log
+.pytest_cache/
+
+# IDE
+.vscode/
+.idea/

DEPLOYMENT_FIXES.md

@@ -1,151 +0,0 @@
-# Deployment Fixes for RAG API v2.4
-
-## Issues Fixed
-
-### 1. ✅ Qdrant `order_by` Error (FIXED IN CODE)
-- **Status:** Fixed in commit `7110008`
-- **Action:** Already deployed, no action needed
-
-### 2. ✅ DuckDuckGo Decode Error (FIXED IN CODE)
-- **Status:** Fixed with better error handling
-- **Action:** Deploy latest code
-- **Details:** System now gracefully handles decode errors and falls back to database
-
-### 3. ⚠️ Reranker Tokenizer Error (NEEDS DEPLOYMENT)
-- **Status:** Fix ready, needs dependency upgrade
-- **Action:** Run upgrade script (see below)
-
----
-
-## Deployment Steps
-
-### Option A: Automatic Upgrade (Recommended)
-
-```bash
-cd services/apis/rag-api
-chmod +x upgrade_dependencies.sh
-./upgrade_dependencies.sh
-```
-
-### Option B: Manual Upgrade
-
-```bash
-pip install --upgrade FlagEmbedding>=1.2.11
-pip install --upgrade transformers>=4.45.0
-```
-
-### Option C: Fresh Install
-
-```bash
-cd services/apis/rag-api
-pip install -r requirements.txt --upgrade
-```
-
----
-
-## Verification
-
-After deployment, check logs for:
-
-### ✅ Success Indicators:
-```
-# No more Qdrant errors
-✓ No "order_by not supported" warnings
-
-# No more reranker errors  
-✓ No "XLMRobertaTokenizer has no attribute prepare_for_model" errors
-
-# DuckDuckGo graceful handling
-✓ "DuckDuckGo decode error (likely rate limit)" → Falls back to DB
-✓ System continues working with database results
-```
-
-### ❌ If Still Broken:
-```bash
-# Check installed versions
-pip show FlagEmbedding transformers
-
-# Should show:
-# FlagEmbedding: 1.2.11 or higher
-# transformers: 4.45.0 or higher
-
-# If not, force reinstall:
-pip uninstall FlagEmbedding transformers -y
-pip install FlagEmbedding==1.2.11 transformers==4.45.0
-```
-
----
-
-## Testing
-
-### Test 1: Check Reranker
-```bash
-# Query the API and check logs
-curl -X POST http://localhost:7860/api/v1/rag/chat/stream \
-  -H "Content-Type: application/json" \
-  -d '{"query": "Ethiopia news today"}'
-
-# Check logs - should NOT see:
-# ❌ "Reranker scoring failed"
-
-# Should see:
-# ✅ "DEBUG: After hybrid ranking: 15 results"
-```
-
-### Test 2: Check DuckDuckGo
-```bash
-# Query with temporal intent
-curl -X POST http://localhost:7860/api/v1/rag/chat/stream \
-  -H "Content-Type: application/json" \
-  -d '{"query": "breaking news today"}'
-
-# Check logs:
-# ✅ "DEBUG: Hybrid search returned X DB + Y live results"
-# If Y=0, check for:
-# ✅ "DuckDuckGo decode error (likely rate limit)" → Graceful fallback
-```
-
-### Test 3: Check News Endpoint
-```bash
-# Test browse endpoint
-curl http://localhost:7860/api/v1/news/latest?limit=10
-
-# Should return:
-# ✅ 200 OK with recent articles
-# ✅ No 400 errors in logs
-```
-
----
-
-## Rollback Plan
-
-If issues occur after deployment:
-
-```bash
-# Rollback to previous versions
-pip install FlagEmbedding==1.2.5 transformers==4.40.0
-
-# Or rollback code
-git revert 7110008
-git push
-```
-
----
-
-## Support
-
-If issues persist:
-1. Check logs for specific error messages
-2. Verify Python version (should be 3.10+)
-3. Check if running in virtual environment
-4. Try fresh install in clean environment
-
----
-
-## Version History
-
-- **v2.4** (2026-05-04): Fixed Qdrant order_by, DuckDuckGo errors, upgraded reranker
-- **v2.3** (2026-05-04): Interactive thinking indicator with Lucide icons
-- **v2.2** (2026-05-03): Time-based filtering for news endpoint
-- **v2.1** (2026-05-03): Query enhancements and flexible prompting
-- **v2.0** (2026-05-02): Hybrid RAG with live search

upgrade_dependencies.sh

@@ -1,25 +0,0 @@
-#!/bin/bash
-# Upgrade script for fixing reranker tokenizer issue
-# Run this on HF Spaces or production server
-
-echo "=========================================="
-echo "Upgrading RAG API Dependencies"
-echo "=========================================="
-
-echo ""
-echo "📦 Upgrading FlagEmbedding (reranker fix)..."
-pip install --upgrade FlagEmbedding>=1.2.11
-
-echo ""
-echo "📦 Upgrading transformers (tokenizer fix)..."
-pip install --upgrade transformers>=4.45.0
-
-echo ""
-echo "✅ Dependencies upgraded successfully!"
-echo ""
-echo "🔄 Please restart the service for changes to take effect:"
-echo "   - HF Spaces: Will auto-restart"
-echo "   - Docker: docker-compose restart rag-api"
-echo "   - Systemd: systemctl restart rag-api"
-echo ""
-echo "=========================================="