chore(issue-watcher): skip issues labeled 'blocked'

[stackbilt-admin]

Summary

Extends `SKIP_LABELS` in the scheduled issue-watcher so issues tagged `blocked` are not auto-queued as cc_tasks. Paired with a new `blocked` label on aegis god-object epic children (aegis#536-542) that have unsatisfied phase-1 dependencies.

Why

Without this gate, a 2h issue-watcher tick could queue Phase 2/3/4 refactor issues as tasks before the Phase 1 foundations (#533 ExecutorRegistry, #534 MemoryService, #535 EmailBuilder) ship. Downstream refactors depend on those abstractions; running them on the pre-phase-1 codebase would either duplicate the foundation work inside the wrong scope or produce churn that collides with the phase-1 PRs.

`wishlist`, `roadmap`, `epic` were already in `SKIP_LABELS` for the same class of reason (multi-session scope). `blocked` fits the same pattern: a declarative 'do not queue yet' signal that the operator owns.

Changes

• `web/src/kernel/scheduled/issue-watcher.ts` — `SKIP_LABELS` adds `blocked`; comment clarifies semantics
• `web/tests/issue-watcher.test.ts` — new case: blocked-labeled issue produces zero `INSERT INTO cc_tasks`

Test plan

• `npx vitest run tests/issue-watcher.test.ts` — 32/32 pass locally
• Merge + wait for next issue-watcher tick on aegis-daemon (runs every 2h) — verify #536-542 don't get queued

Related

• aegis#532 (god-object epic) and its Phase 2+ children #536-542 are labeled `blocked` already
• Operator removes the label when blockers close and the child becomes eligible

🤖 Generated with Claude Code

[stackbilt-admin]

Merging over red Governance Check — the Charter audit job is pre-existing infrastructure-broken: it expects package.json at repo root, but aegis-oss keeps the package inside web/. Fails on every run including the most recently merged PRs (fix(health,argus), etc). This PR's Test & Typecheck passes (32/32). Not a quality signal from this diff.

Unblocks aegis#532 sequencing gate per the epic comment — consumer (aegis-daemon issue-watcher) needs the blocked label skip to land before the Phase 2+ god-object children can safely sit in the open-issue list.

Governance Check misconfiguration tracked separately — not in scope for this one-line SKIP_LABELS extension.