Tasks: one the-loop start for every service the config enables

Phase 3 of 3. A DAG, not a list. Each _Test:_ names a row of testing-plan.md.

graph LR
  T1["1 · enabled flags (schema + config code)"] --> T2["2 · MCP flag in create_app"]
  T1 --> T3["3 · poller/daemon.py + daemon_entry"]
  T3 --> T4["4 · delete poll cmd, shrink daemonize"]
  T1 --> T5["5 · core/lifecycle.py"]
  T4 --> T5
  T5 --> T6["6 · lifecycle commands"]
  T5 --> T7["7 · POST /api/v1/restart + contract"]
  T1 --> T8["8 · ensure_service fail-closed"]
  T4 --> T9["9 · re-point poller tests"]
  T6 --> T10["10 · new tests"]
  T7 --> T10
  T8 --> T10
  T6 --> T11["11 · docs + capability docs + decision-084"]
  T10 --> T12["12 · verification"]
  T9 --> T12
  T11 --> T12

Tasks

• [x] 1. The enabled flags. Add service.enabled, service.mcp.enabled, webhooks.ghWebhook.enabled, polling.enabled to both schema copies (byte-identical) and to skills/the-loop/templates/cli-config.yaml; resolve them in api/config.service_config and wherever the daemon blocks are read. Requirements: R1.1, R5.3, NFR4 · Test: T6
• [x] 2. MCP is mountable-off. create_app skips building/mounting the MCP app and its lifespan when service.mcp.enabled is false; /mcp answers 404. Requirements: R1.6 · Test: T4
• [x] 3. The poller run loop moves. New poller/daemon.py (options from config, run, status, stop — logic from commands/poll.py, messages renamed to the-loop stop/ status); daemon_entry poller [--once] drives it directly. Requirements: R2.2, R2.3, NFR1 · Test: T3
• [x] 4. Remove the poll command. Delete commands/poll.py and its registration; cli.py's _refresh_cli_config_paths drops the import; daemonize.py shrinks to open_logfile (the double-fork existed for poll start --daemon only). Requirements: R2.1 · Test: T3, T12
• [x] 5. core/lifecycle.py. plan, start_all, stop_all, status_all, schedule_restart as designed (D3); service spawn/health logic moved here from service_cmd, which now delegates. Requirements: R1.1–R1.5, R3.1–R3.4, R4.4, R4.5 · Test: T1
• [x] 6. The lifecycle commands. commands/lifecycle_cmd.py: start, stop, status --format, restart --with-upgrade (planner from issue-152, components=["cli"], upgrade failure does not abort the start half). Requirements: R1, R3, R4.1–R4.3 · Test: T2
• [x] 7. The restart API. POST /api/v1/restart → schedule_restart; add the route to docs/api-specs/openapi/the-loop.v1.yaml; state the MCP exclusion in api/mcp.py. Requirements: R4.4, R4.5 · Test: T4, T5
• [x] 8. Fail-closed auto-start. client.ensure_service refuses when service.enabled is false, naming the key. Requirements: R5.2 · Test: T1
• [x] 9. Re-point the poller tests. The scenarios of test_poll_command, test_poll_daemon_integration, test_poll_status (and any other poll start driver) keep their Gherkin and assert via the new entry points; runlock/tmux/interaction tests updated where they shelled the-loop poll. Requirements: R2.2, R2.4 · Test: T3
• [x] 10. New tests. test_core_lifecycle.py, test_lifecycle_cmd.py, restart-API and MCP-flag cases in the existing integration suites; contract parity. Requirements: all · Test: T1, T2, T4, T5
• [x] 11. Docs. Command pages (delete poll.md; add start.md, stop.md, status.md, restart.md; update index.md, service.md, gh-webhook.md), config option pages (polling, webhook, service), getting-started / installation / state, README + cli/README, capability docs (cli.md, control-plane.md, webhook-triggers.md, interactive-sessions.md), reference/observability.md + reference/automation.md, decision-084 + index row. Requirements: NFR3 · Test: T6, T9(docs), T12
• [x] 12. Verification. Execute the plan, fill its Results column, commit evidence. Requirements: all · Test: T7–T12

Added on owner review (PR #229)

• [x] 13. Fold gh-webhook and service away. Receiver run loop → webhook/daemon.py; both command modules deleted; daemon_entry drives both daemons directly; hints, docs (pages relocated to /cli/service and /cli/receiver), capability docs and tests re-pointed. Requirements: R5.1 (superseded form) · Test: T3, T7, T13
• [x] 14. Dashboard restart. restart() on the API client (live + demo), the Settings Service card, the config editor's "Restart now" on restartRequired; UI tests, lint, typecheck, build. Requirements: R4.6 · Test: T13
• [x] 15. Single-process mode (review round 2, issue-231). service.hostIngresses (default true) in service_config + both schema copies + template; api/ingress.py hosting the poller (_run_locked with stop_event, no signal handlers) and the receiver (build_receiver split) as locked threads in create_app's lifespan; core.lifecycle detecting hosted-ness from the lock in start_all/stop_all/status_all; RESTART_REQUIRED + new event types; docs (config/command/service/receiver pages, capability docs, decision-084 §8, requirements R6 / design D6). Requirements: R6.1–R6.6 · Test: T14