Add escalation summary generation and product search rejection

Add production features: circuit breaker, exponential backoff, semantic caching, intent-based scope handling

Remove state mutations from scope_validator out-of-scope path

Fix final 3 state mutations: escalation, scope_validator, sanitizer now return partial dicts

Complete state mutation refactor: all nodes now return partial dicts (LangGraph reducer pattern)

Fix interview-critical issues: state mutation anti-pattern, documentation accuracy, prior frustration handling, security notes

Fix critical bugs: compensation for late orders, escalation detection, conversation history improvements

Fix 5 critical bugs: replace LLM scope validator with embedding similarity, add missing state fields, fix routing, improve timeout handling

Add clarification node for missing order IDs + rule-based fallbacks to prevent 504 timeout

Fix contradictory logic: Conditional tone based on delivery timing, frustration threshold 0.5, celebrate early deliveries

Fix sequential LLM timeout: Add 20s per-call timeout, 90s executor timeout, split error handling

Fix timeout bugs: Dedicated warmup script, get_running_loop, thread-safe LLM cache, proper message format

Fix 120s timeout: Add model pre-warming, LLM warmup, and async executor for graph.invoke

Update ARCHITECTURE.md: Add scope validator node and out-of-scope query handling

Add scope validation and system capabilities: Handle meta queries and reject out-of-scope questions

Fix bugs #2 and #3: Add database and vectorstore with Git LFS, update start.sh with build fallbacks

Fix all 9 critical bugs: API readiness loop, debug params, timeout, LLM cache, state mutation, requirements split, duplicate file

Clean repo structure: Single ARCHITECTURE.md + updated README

Add Git LFS tracking for database file

Fix: All 7 critical bugs + 4 security enhancements + compensation policy

Fix date logic and add comprehensive test suite

Add comprehensive system design documentation

Fix None value formatting in Streamlit UI

Add Streamlit UI for HF Space

Remove .env from Dockerfile

Update Dockerfile for FastAPI

Fix requirements.txt merge conflict

Add HF Space metadata to README

Track large CSV and zip files with LFS

Merge with HF Space: resolved conflicts

Initial commit: Olist intelligence layer with database

initial commit

Duplicate from streamlit/streamlit-template-space