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/trade_signals.sql

@@ -0,0 +1,18 @@
+-- Analytical fact table: trade_signals
+-- Partitioned by dt on MinIO
+
+CREATE TABLE IF NOT EXISTS lakehouse.stonks.trade_signals (
+    signal_id         VARCHAR,
+    ticker            VARCHAR,
+    trend_direction   VARCHAR,
+    trend_strength    DOUBLE,
+    confidence        DOUBLE,
+    action            VARCHAR,
+    time_horizon      VARCHAR,
+    generated_at      TIMESTAMP(6) WITH TIME ZONE,
+    dt                DATE
+) WITH (
+    format = 'PARQUET',
+    partitioned_by = ARRAY['dt'],
+    external_location = 's3a://stonks-lakehouse/warehouse/trade_signals/'
+);