feat: Stealth worker system with mandatory proxy rotation

## Worker System
- Role-agnostic workers that can handle any task type
- Pod-based architecture with StatefulSet (5-15 pods, 5 workers each)
- Custom pod names (Aethelgard, Xylos, Kryll, etc.)
- Worker registry with friendly names and resource monitoring
- Hub-and-spoke visualization on JobQueue page

## Stealth & Anti-Detection (REQUIRED)
- Proxies are MANDATORY - workers fail to start without active proxies
- CrawlRotator initializes on worker startup
- Loads proxies from `proxies` table
- Auto-rotates proxy + fingerprint on 403 errors
- 12 browser fingerprints (Chrome, Firefox, Safari, Edge)
- Locale/timezone matching for geographic consistency

## Task System
- Renamed product_resync → product_refresh
- Task chaining: store_discovery → entry_point → product_discovery
- Priority-based claiming with FOR UPDATE SKIP LOCKED
- Heartbeat and stale task recovery

## UI Updates
- JobQueue: Pod visualization, resource monitoring on hover
- WorkersDashboard: Simplified worker list
- Removed unused filters from task list

## Other
- IP2Location service for visitor analytics
- Findagram consumer features scaffolding
- Documentation updates

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

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

backend/migrations/077_click_events_location.sql

@@ -0,0 +1,35 @@
+-- Migration: Add visitor location and dispensary name to click events
+-- Captures where visitors are clicking from and which dispensary
+
+-- Add visitor location columns
+ALTER TABLE product_click_events
+ADD COLUMN IF NOT EXISTS visitor_city VARCHAR(100);
+
+ALTER TABLE product_click_events
+ADD COLUMN IF NOT EXISTS visitor_state VARCHAR(10);
+
+ALTER TABLE product_click_events
+ADD COLUMN IF NOT EXISTS visitor_lat DECIMAL(10, 7);
+
+ALTER TABLE product_click_events
+ADD COLUMN IF NOT EXISTS visitor_lng DECIMAL(10, 7);
+
+-- Add dispensary name for easier reporting
+ALTER TABLE product_click_events
+ADD COLUMN IF NOT EXISTS dispensary_name VARCHAR(255);
+
+-- Create index for location-based analytics
+CREATE INDEX IF NOT EXISTS idx_product_click_events_visitor_state
+ON product_click_events(visitor_state)
+WHERE visitor_state IS NOT NULL;
+
+CREATE INDEX IF NOT EXISTS idx_product_click_events_visitor_city
+ON product_click_events(visitor_city)
+WHERE visitor_city IS NOT NULL;
+
+-- Add comments
+COMMENT ON COLUMN product_click_events.visitor_city IS 'City where the visitor is located (from IP geolocation)';
+COMMENT ON COLUMN product_click_events.visitor_state IS 'State where the visitor is located (from IP geolocation)';
+COMMENT ON COLUMN product_click_events.visitor_lat IS 'Visitor latitude (from IP geolocation)';
+COMMENT ON COLUMN product_click_events.visitor_lng IS 'Visitor longitude (from IP geolocation)';
+COMMENT ON COLUMN product_click_events.dispensary_name IS 'Name of the dispensary (denormalized for easier reporting)';