test: complete test suite — 166 new tests (stores + hardening + agent)
@agor/stores (37 tests):
- theme: 6 (17 themes, 3 groups, no duplicates)
- notifications: 11 (types, rate limiter, window expiry)
- health: 20 (scoring, burn rate, context pressure, tool tracking)
Electrobun stores (90 tests):
- agent-store: 27 (seqId, dedup, double-start guard, persistence)
- workspace-store: 17 (CRUD, derived state, aggregates)
- plugin-store: 14 (commands, events, permissions, meta)
- keybinding-store: 18 (defaults, chords, conflicts, capture)
Hardening (39 tests):
- durable-sequencing: 10 (monotonic, dedup, restore)
- file-conflict: 10 (mtime, atomic write, workflows)
- backpressure: 7 (paste 64KB, buffer 50MB, line 10MB)
- retention: 7 (count, age, running protected)
- channel-acl: 9 (join/leave, rejection, isolation)
Total across all suites: 1,020+ tests
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