refactor: Phase 2b — consolidate 28 modules into 14 packages

Complete the module consolidation planned in REFACTORING_PLAN.md:

Modules merged:
- work_orders/ + task_queue/ → swarm/ (subpackages)
- self_modify/ + self_tdd/ + upgrades/ → self_coding/ (subpackages)
- tools/ → creative/tools/
- chat_bridge/ + telegram_bot/ + shortcuts/ + voice/ → integrations/ (new)
- ws_manager/ + notifications/ + events/ + router/ → infrastructure/ (new)
- agents/ + agent_core/ + memory/ → timmy/ (subpackages)

Updated across codebase:
- 66 source files: import statements rewritten
- 13 test files: import + patch() target strings rewritten
- pyproject.toml: wheel includes (28→14), entry points updated
- CLAUDE.md: singleton paths, module map, entry points table
- AGENTS.md: file convention updates
- REFACTORING_PLAN.md: execution status, success metrics

Extras:
- Module-level CLAUDE.md added to 6 key packages (Phase 6.2)
- Zero test regressions: 1462 tests passing

https://claude.ai/code/session_01JNjWfHqusjT3aiN4vvYgUk

AGENTS.md

@@ -66,8 +66,8 @@ make docker-agent       # add a worker
 |---------|-----------|
 | New route | `src/dashboard/routes/<name>.py` + register in `app.py` |
 | New template | `src/dashboard/templates/<name>.html` extends `base.html` |
-| New subsystem | `src/<name>/` with `__init__.py` |
-| New test | `tests/test_<module>.py` |
+| New subsystem | Add to existing `src/<package>/` — see module map in CLAUDE.md |
+| New test | `tests/<module>/test_<feature>.py` (mirror source structure) |
 | Secrets | Via `config.settings` + startup warning if default |
 | DB files | Project root or `data/` — never in `src/` |