feat: integrate Elephant Alpha ecosystem with full ADR-012/013 compliance

- Add ElephantService, AutonomousEngine, Orchestrator, DecisionRouter (EA 4-file stack)
- Fix 10 bugs: URL typo, SQL schema mismatches (price_records JOIN), enum mapping,
  metadata_json, NemoTron PriceThreat dispatch, async/await mismatch, broken imports
- Wire ADR-012 Agent Action Ladder: EventRouter L2 → EA first + AIOrch fallback;
  all decisions dual-write DB + triaged_alert Telegram; momo: callback prefix
- Wire ADR-013 AutoHeal: resource_optimization trigger → AutoHealService
- Add W3 guards: connection cache 300s TTL, $5/hr cost hard limit
- Add W4 persistence: routing decisions + agent performance snapshots → ai_insights
- Add Migration 015: confidence + created_by columns on ai_insights
- Fix run_scheduler.py broken imports (DecisionTracker service didn't exist)
- Fix verify_elephant_integration.py: check_status() → check_connection()

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

.gitignore

@@ -125,3 +125,8 @@ k8s/03-secrets.yaml
 123
 *.db-shm
 *.db-wal
+.aider*
+# Aider
+.aider.chat.history.md
+.aider.input.history
+.aider.tags.cache.v4/