fix(reconciler): skip escalated / Blocked / Needs-Input tasks in F-1

Reconciler F-1 could not tell "stuck by a lost webhook" from "escalated:
max developer retries reached, waiting for a human". With CI green and a
reviewer that kept sending REQUEST_CHANGES up to the cap, every tick
re-unblocked development -> review -> rollback -> re-unblock (incident
ET-013, infinite bounce: wasted agent runs, Telegram spam, parasitic load
on the shared self-hosting instance).

Add two pre-gate guards in Reconciler._reconcile_gate_task (after the
existing analysis/no-gate/active-job/grace guards, before the gate
pre-evaluation), each an early silent return (no advance, no unblocked_total
increment, no notifications):
- Guard 1 (escalated, deterministic, no network, checked first):
  developer_retry_count(task_id) >= MAX_DEVELOPER_RETRIES. Promote
  stage_engine._developer_retry_count to public developer_retry_count
  (single source of truth; private alias kept). Limit from the constant,
  not a literal 3.
- Guard 2 (explicit human Plane gate, Variant A, no DB migration): new
  never-raise plane_sync.fetch_issue_state + Reconciler._is_blocked_or_needs_input;
  any error/None/unresolved project -> conservative skip. New sub-flag
  ORCH_RECONCILE_SKIP_BLOCKED_ENABLED mutes only the networked Guard 2.

F-2 unchanged: Blocked/Needs Input are outside {in_progress, approved,
rejected} so they are never replayed (regression test added). DB schema,
STAGE_TRANSITIONS, QG_CHECKS, never-raise, analysis carve-out and
kill-switches untouched.

Refs: ORCH-060

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

docs/architecture/README.md

@@ -201,4 +201,4 @@ never-raise на единицу работы; тишина при синхрон
 Схема БД, потоки данных, resilience-слой, детали Dockerfile — [internals.md](internals.md).
 
 ---
-*Актуально на 2026-06-07. Обновлять при изменении src/stages.py, src/qg/checks.py, src/main.py. Статусы доработок: ORCH-036 (исполняемый самодеплой `deploy`, adr-0007) — реализовано; ORCH-043 (merge-gate, adr-0006) — design, ветка feature/ORCH-043; ORCH-053 (reconciler, adr-0007, src/reconciler.py) — реализовано; ORCH-060 (F-1 skip escalated/Blocked/Needs-Input, `docs/work-items/ORCH-060/06-adr/ADR-001`) — architecture, ветка feature/ORCH-060; ORCH-058 (провенанс staging-образа: check_staging_image_fresh + staging_check свежего образа + хук-guard, adr-0008) — реализовано в ветке feature/ORCH-058 (обновлять также при изменении src/image_freshness.py, scripts/orchestrator-deploy-hook.sh, Dockerfile).*
+*Актуально на 2026-06-07. Обновлять при изменении src/stages.py, src/qg/checks.py, src/main.py. Статусы доработок: ORCH-036 (исполняемый самодеплой `deploy`, adr-0007) — реализовано; ORCH-043 (merge-gate, adr-0006) — design, ветка feature/ORCH-043; ORCH-053 (reconciler, adr-0007, src/reconciler.py) — реализовано; ORCH-060 (F-1 skip escalated/Blocked/Needs-Input, `docs/work-items/ORCH-060/06-adr/ADR-001`) — реализовано в ветке feature/ORCH-060 (Guard 1 `developer_retry_count>=MAX_DEVELOPER_RETRIES` + Guard 2 `plane_sync.fetch_issue_state` Blocked/Needs-Input, флаг `ORCH_RECONCILE_SKIP_BLOCKED_ENABLED`); ORCH-058 (провенанс staging-образа: check_staging_image_fresh + staging_check свежего образа + хук-guard, adr-0008) — реализовано в ветке feature/ORCH-058 (обновлять также при изменении src/image_freshness.py, scripts/orchestrator-deploy-hook.sh, Dockerfile).*