v2.0.3: Webhook user identification by URL token

- Added webhook_token to telegram_integrations
- Webhooks now identify users by token in URL (/webhook/telegram/{token}, /webhook/todoist/{token})
- Webhook automatically configured for all users on backend startup
- Migration 011: Add webhook_token column

play-life-backend/migrations/011_add_webhook_tokens.sql

@@ -0,0 +1,17 @@
+-- Migration: Add webhook_token to telegram_integrations
+-- This allows identifying user by webhook URL token
+
+-- Add webhook_token column to telegram_integrations
+ALTER TABLE telegram_integrations 
+ADD COLUMN IF NOT EXISTS webhook_token VARCHAR(255);
+
+-- Create unique index on webhook_token for fast lookups
+CREATE UNIQUE INDEX IF NOT EXISTS idx_telegram_integrations_webhook_token 
+ON telegram_integrations(webhook_token) 
+WHERE webhook_token IS NOT NULL;
+
+-- Generate webhook tokens for existing integrations
+-- This will be handled by application code, but we ensure the column exists
+
+COMMENT ON COLUMN telegram_integrations.webhook_token IS 'Unique token for webhook URL identification (e.g., /webhook/telegram/{token})';
+