Merge branch 'worktree-supervisor-flags'

Python supervisor + DB-backed feature flags

- supervisor.py replaces supervisor.sh (topological wave scheduling, croniter)
- workflows.toml workflow registry (5 extractors, cron presets, depends_on)
- proxy.py round-robin + sticky proxy rotation via PROXY_URLS
- Feature flags: migration 0019, is_flag_enabled(), feature_gate() decorator
- Admin /admin/flags UI with toggle (admin-only)
- lead_unlock gate on unlock_lead route
- 59 new tests (test_supervisor.py + test_feature_flags.py)
- Fix is_flag_enabled bug (fetch_one instead of execute_fetchone)

# Conflicts:
#	CHANGELOG.md
#	web/pyproject.toml

infra/supervisor/padelnomics-supervisor.service

@@ -7,10 +7,11 @@ Wants=network-online.target
 Type=simple
 User=root
 WorkingDirectory=/opt/padelnomics
-ExecStart=/opt/padelnomics/infra/supervisor/supervisor.sh
+ExecStart=/bin/sh -c 'exec uv run python src/padelnomics/supervisor.py'
 Restart=always
 RestartSec=10
 EnvironmentFile=/opt/padelnomics/.env
+Environment=PATH=/root/.local/bin:/usr/local/bin:/usr/bin:/bin
 Environment=LANDING_DIR=/data/padelnomics/landing
 Environment=DUCKDB_PATH=/data/padelnomics/lakehouse.duckdb
 Environment=SERVING_DUCKDB_PATH=/data/padelnomics/analytics.duckdb

infra/supervisor/workflows.toml

@@ -0,0 +1,33 @@
+# Workflow registry — the supervisor reads this file on every tick.
+# To add a new extractor: add a [section] here and create the Python module.
+#
+# Fields:
+#   module   — Python module path (must have a main() function)
+#   schedule — named preset ("hourly", "daily", "weekly", "monthly")
+#              or raw cron expression (e.g. "0 6-23 * * *")
+#   entry    — optional: function name if not "main" (default: "main")
+#   depends_on — optional: list of workflow names that must run first
+#   proxy_mode — optional: "round-robin" (default) or "sticky"
+
+[overpass]
+module = "padelnomics_extract.overpass"
+schedule = "monthly"
+
+[eurostat]
+module = "padelnomics_extract.eurostat"
+schedule = "monthly"
+
+[playtomic_tenants]
+module = "padelnomics_extract.playtomic_tenants"
+schedule = "weekly"
+
+[playtomic_availability]
+module = "padelnomics_extract.playtomic_availability"
+schedule = "daily"
+depends_on = ["playtomic_tenants"]
+
+[playtomic_recheck]
+module = "padelnomics_extract.playtomic_availability"
+entry = "main_recheck"
+schedule = "0 6-23 * * *"
+depends_on = ["playtomic_availability"]