refactor(main): extract anilist/mpv runtime composers

docs/subagents/INDEX.md

@@ -31,3 +31,4 @@ Read first. Keep concise.
 | `opencode-task95-config-20260221T031843Z-m4k9`            | `opencode-task95-config`            | `Implement TASK-95 config extraction for src/config/service.ts`                                                      | `done`        | `docs/subagents/agents/opencode-task95-config-20260221T031843Z-m4k9.md`            | `2026-02-21T03:26:57Z` |
 | `codex-task95-anki-20260221T031836Z-6f3e`                 | `codex-task95-anki`                 | `Implement TASK-95 anki-integration extraction for field-grouping merge collaborator`                                | `done`        | `docs/subagents/agents/codex-task95-anki-20260221T031836Z-6f3e.md`                 | `2026-02-21T03:26:55Z` |
 | `opencode-task-94-20260221T033647Z-7ou2`                  | `opencode-task-94`                  | `Finish TASK-94 thin composition root refactor and close acceptance criteria`                                        | `done`        | `docs/subagents/agents/opencode-task-94-20260221T033647Z-7ou2.md`                  | `2026-02-21T04:12:45Z` |
+| `codex-task71-round2-20260221T043541Z-k9t3`               | `codex-task71-round2`               | `Execute TASK-71 round 2 split of main.ts into domain runtime modules`                                               | `done`        | `docs/subagents/agents/codex-task71-round2-20260221T043541Z-k9t3.md`               | `2026-02-21T04:57:00Z` |

docs/subagents/agents/codex-task71-round2-20260221T043541Z-k9t3.md

@@ -0,0 +1,46 @@
+# Agent: codex-task71-round2-20260221T043541Z-k9t3
+
+- alias: codex-task71-round2
+- mission: Execute TASK-71 round 2 by further splitting main.ts wiring into domain runtime modules with focused tests/docs updates
+- status: done
+- branch: main
+- started_at: 2026-02-21T04:35:41Z
+- heartbeat_minutes: 5
+
+## Current Work (newest first)
+
+- [2026-02-21T04:57:00Z] completed: TASK-71 moved to Done in Backlog MCP; AC + DoD checked; notes/final summary recorded.
+- [2026-02-21T04:55:00Z] verify: `bun run build`, `bun run check:main-fanin:strict`, `bun run test:fast` all passing.
+- [2026-02-21T04:52:00Z] progress: added `src/main/runtime/composers/index.ts` barrel and rewired `src/main.ts` composer imports to recover strict fan-in gate (85 lines / 10 unique paths).
+- [2026-02-21T04:49:00Z] progress: rewired `src/main.ts` AniList + MPV assembly clusters to `composeAnilistTrackingHandlers` + `composeMpvRuntimeHandlers`; added architecture/development docs updates.
+- [2026-02-21T04:44:00Z] progress: parallel subagents delivered new composers + seam tests for AniList tracking and MPV runtime clusters.
+- [2026-02-21T04:35:41Z] intent: load TASK-71 context from Backlog MCP, create plan via writing-plans, execute via executing-plans, no commit.
+- [2026-02-21T04:35:41Z] planned files: `src/main.ts`, `src/main/runtime/composers/*`, `src/main/runtime/domains/*`, focused tests, `docs/architecture.md`, Backlog TASK-71 metadata via MCP tools only.
+- [2026-02-21T04:35:41Z] assumptions: existing dirty tree includes prior TASK-94/TASK-95 work; preserve unrelated edits.
+
+## Files Touched
+
+- `docs/subagents/agents/codex-task71-round2-20260221T043541Z-k9t3.md`
+- `docs/subagents/INDEX.md`
+- `docs/subagents/collaboration.md`
+- `docs/plans/2026-02-21-task-71-round2-main-runtime-modules.md`
+- `src/main.ts`
+- `src/main/runtime/composers/anilist-tracking-composer.ts`
+- `src/main/runtime/composers/anilist-tracking-composer.test.ts`
+- `src/main/runtime/composers/mpv-runtime-composer.ts`
+- `src/main/runtime/composers/mpv-runtime-composer.test.ts`
+- `src/main/runtime/composers/index.ts`
+- `docs/architecture.md`
+- `docs/development.md`
+
+## Assumptions
+
+- User requested direct plan+execution flow; no extra approval gate needed.
+
+## Open Questions / Blockers
+
+- none
+
+## Next Step
+
+- Handoff complete; await user direction (optional commit/push).

docs/subagents/collaboration.md

@@ -29,3 +29,5 @@ Shared notes. Append-only.
 - [2026-02-21T03:36:58Z] [opencode-task-94-20260221T033647Z-7ou2|opencode-task-94] starting TASK-94 finish pass: pull backlog context, write+execute plan via writing-plans/executing-plans, and close remaining AC without commit.
 - [2026-02-21T04:11:57Z] [opencode-task-94-20260221T033647Z-7ou2|opencode-task-94] extracted IPC/shortcuts/startup-lifecycle/app-ready clusters behind composer modules, rewired `src/main.ts`, added focused composer tests, and revalidated build + `check:main-fanin` + `test:core:dist`.
 - [2026-02-21T04:12:45Z] [opencode-task-94-20260221T033647Z-7ou2|opencode-task-94] TASK-94 finalized in Backlog MCP: AC checklist complete, notes+final summary recorded, status moved to Done.
+- [2026-02-21T04:35:41Z] [codex-task71-round2-20260221T043541Z-k9t3|codex-task71-round2] overlap note: starting TASK-71 round 2 follow-up on `src/main.ts` + `src/main/runtime/composers/*` + docs; preserving prior TASK-94/TASK-95 edits.
+- [2026-02-21T04:57:00Z] [codex-task71-round2-20260221T043541Z-k9t3|codex-task71-round2] completed TASK-71: extracted AniList tracking + MPV runtime composition into new composers, added seam tests, rewired `main.ts` + composer barrel, strict fan-in green, and finalized Backlog task as Done.