feat: Sprint 10 - Architecture docs, CI/CD, operational scripts

Phase 1 - Architecture Documentation:
- Add Architecture section with Mermaid flowchart to README
- Create docs/DATABASE_SCHEMA.md with full ERD

Phase 2 - CI/CD:
- Add CI badge to README
- Create .gitea/workflows/ci.yml for linting and tests
- Create .gitea/workflows/deploy-staging.yml
- Create .gitea/workflows/deploy-production.yml

Phase 3 - Operational Scripts:
- Create scripts/logs.sh for docker compose log following
- Create scripts/run-detached.sh with health check loop
- Create scripts/etl/toronto.sh for Toronto data pipeline
- Add Makefile targets: logs, run-detached, etl-toronto

Phase 4 - Runbooks:
- Create docs/runbooks/adding-dashboard.md
- Create docs/runbooks/deployment.md

Phase 5 - Hygiene:
- Create MIT LICENSE file

Phase 6 - Production:
- Add live demo link to README (leodata.science)

Closes #78, #79, #80, #81, #82, #83, #84, #85, #86, #87, #88, #89, #91

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

scripts/run-detached.sh

@@ -0,0 +1,38 @@
+#!/usr/bin/env bash
+# scripts/run-detached.sh - Start containers and wait for health
+#
+# Usage:
+#   ./scripts/run-detached.sh
+
+set -euo pipefail
+
+TIMEOUT=60
+INTERVAL=5
+
+echo "Starting containers in detached mode..."
+docker compose up -d
+
+echo "Waiting for services to become healthy..."
+elapsed=0
+
+while [ $elapsed -lt $TIMEOUT ]; do
+    # Check if postgres is ready
+    if docker compose exec -T postgres pg_isready -U portfolio > /dev/null 2>&1; then
+        echo "PostgreSQL is ready!"
+
+        # Check if app health endpoint responds (if running)
+        if curl -sf http://localhost:8050/health > /dev/null 2>&1; then
+            echo "Application health check passed!"
+            echo "All services are healthy."
+            exit 0
+        fi
+    fi
+
+    echo "Waiting... ($elapsed/$TIMEOUT seconds)"
+    sleep $INTERVAL
+    elapsed=$((elapsed + INTERVAL))
+done
+
+echo "ERROR: Health check timed out after $TIMEOUT seconds"
+docker compose ps
+exit 1