Remove JIRA_SCHEMA_ID from entire application

- Remove JIRA_SCHEMA_ID from all documentation, config files, and scripts
- Update generate-schema.ts to always auto-discover schemas dynamically
- Runtime application already discovers schemas via /objectschema/list API
- Build script now automatically selects schema with most objects
- Remove JIRA_SCHEMA_ID from docker-compose.yml, Azure setup scripts, and all docs
- Application is now fully schema-agnostic and discovers schemas automatically

docker-compose.yml

@@ -34,7 +34,6 @@ services:
       # Optional Jira/AI variables (set in .env file or environment)
       - JIRA_HOST=${JIRA_HOST}
       - JIRA_PAT=${JIRA_PAT}
-      - JIRA_SCHEMA_ID=${JIRA_SCHEMA_ID}
       - ANTHROPIC_API_KEY=${ANTHROPIC_API_KEY}
     volumes:
       - ./backend/src:/app/src