Vectorize Farquhar, DI ControlLoop, gate pipeline, budget audit, chatbot Hebrew

Pin xgboost<3 to skip nvidia-nccl-cu12 (294MB)

Slim Docker: drop torch/chronos/streamlit (~2GB), 5x faster build

Add auth to control endpoints, sigmoid Farquhar transition

Fix race conditions, error handling, timezone, divergence check

Fix HEAD support for UptimeRobot, email alerter bug, update docs

Deploy: data flow monitoring, email alerts, chatbot validation

Update health endpoint with data-sources route

Update baked IMS weather cache (through 2026-03-21)

Add .gitignore, remove pycache

Fix IMS weather staleness, add data freshness endpoint

SSE live updates, route cleanup, advisor briefing

Security fix: backend/api/routes/sensors.py

Security fix: backend/api/main.py

Fix CU: use TB Air1 data in 7-day chunks (matches TB 282/310)

Fix chill units: x1.1 multiplier, Israel timezone

Fix NDVI: use Air1+Crop3, cap at 168h

Fix: backend/api/routes/sensors.py

Fix chill units: use IMS data from Nov 1, dual series

Fix TB timeseries fallback

Update backend/api/routes/control.py

Update backend/api/routes/sensors.py

Update backend/api/routes/biology.py

Update backend/api/routes/sensors.py

Update backend/api/routes/biology.py

Full season IMS cache (Nov 2025 - Mar 2026) for chill units

Update backend/api/routes/biology.py

Refresh IMS weather cache (Mar 8-20)

Add format=rows option for weather history (chart data)

Update backend/workers/control_tick.py

Fix daily planner: pass forecast + budget to plan_day()

Return 200 with empty state instead of 503/404

Cache TB data: backend/api/routes/control.py

Cache TB data: src/data/data_providers.py

Add background IMS refresh scheduler (every 6h)

Dockerfile: include Data/ directory for IMS weather cache

Fix /control/trackers: use TrackerDispatcher.read_current_angles()

Upload IMS weather cache for /api/weather/current

Update src/tracker_dispatcher.py: circuit breaker, weather fix, TB health fix

Update src/data/data_providers.py: circuit breaker, weather fix, TB health fix

Update backend/api/routes/health.py: circuit breaker, weather fix, TB health fix

Fix NaN JSON serialization in summarise_dataframe

Add global exception handler — no more bare 500s

Wrap sensor history imports in try/except, add logging to all failure points

Fix sensors/history: catch unhandled exceptions, return 502 with detail

Add error dict detection, raise HTTPException on data provider errors

Add error dict detection, raise HTTPException on data provider errors

Fix chatbot: session_id validation, init failure guard, blank message check

Standardize error handling: HTTPException everywhere

Standardize error handling: HTTPException everywhere