chore(backlog): capture task planning and subagent handoffs

docs/subagents/agents/opencode-task82-smoke-20260222T002150Z-p5bp.md

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+# Agent Session: opencode-task82-smoke-20260222T002150Z-p5bp
+
+- alias: `opencode-task82-smoke`
+- mission: `Execute TASK-82 e2e smoke suite for launcher/mpv/ipc/overlay end-to-end without commit`
+- status: `planning`
+- start_utc: `2026-02-22T00:21:50Z`
+- last_update_utc: `2026-02-22T00:21:50Z`
+
+## Intent
+
+- Load TASK-82 details from Backlog MCP.
+- Produce plan via writing-plans skill.
+- Execute via executing-plans skill; use parallel subagents where safe.
+
+## Planned Files
+
+- `launcher/**/*.test.ts`
+- `scripts/**`
+- `package.json`
+- `.github/workflows/*.yml`
+- `docs/development.md`
+- `docs/RELEASING.md`
+
+## Assumptions
+
+- Existing launcher/mpv readiness primitives from TASK-73/TASK-74 available.
+- Smoke suite can run with local stubs/mocks; no real mpv/jellyfin dependency in CI.
+
+## Log
+
+- `2026-02-22T00:21:50Z` session started; backlog context loaded; moving to planning.