phase 0+1: project scaffold, k8s manifests, CI pipeline, steering, hooks, tests

- Repository structure for all services, infra, lakehouse, dashboards
- K8s manifests targeting stonks-oracle namespace with GHCR images
- Ingress via Traefik with ca-issuer TLS for internal services
- ConfigMap wired to existing cluster services (pg, redis, minio, ollama)
- GitHub Actions workflow for lint, test, multi-service container builds
- Dockerfile with build-arg CMD per service
- Makefile for local build/push/deploy
- Steering rules for TDD workflow, K8s conventions, project context
- Agent hooks for lint-on-save, test-on-save, k8s-validate, phase-commit
- Ruff linter config, all lint issues fixed
- 14 passing tests for schemas, config, redis keys
- PostgreSQL migrations, Trino catalogs, Superset config, MinIO lifecycle

lakehouse/schemas/positions_daily.sql

@@ -0,0 +1,17 @@
+-- Analytical fact table: positions_daily
+-- Partitioned by dt on MinIO
+
+CREATE TABLE IF NOT EXISTS lakehouse.stonks.positions_daily (
+    ticker            VARCHAR,
+    quantity          DOUBLE,
+    avg_entry_price   DOUBLE,
+    close_price       DOUBLE,
+    unrealized_pnl    DOUBLE,
+    broker_account    VARCHAR,
+    snapshot_at       TIMESTAMP(6) WITH TIME ZONE,
+    dt                DATE
+) WITH (
+    format = 'PARQUET',
+    partitioned_by = ARRAY['dt'],
+    external_location = 's3a://stonks-lakehouse/warehouse/positions_daily/'
+);