update docs

docs/subagents/agents/codex-docs-page-polish-20260223T025932Z-b7k2.md

@@ -0,0 +1,29 @@
+# Agent: `codex-docs-page-polish-20260223T025932Z-b7k2`
+
+- alias: `codex-docs-page-polish`
+- mission: `Polish homepage/docs presentation for production readiness and remove stale overlay documentation`
+- status: `handoff`
+- branch: `<current>`
+- started_at: `2026-02-23T02:59:52Z`
+- heartbeat_minutes: `5`
+
+## Current Work
+- [2026-02-23T02:59:52Z] intent: redesign `docs/index.md` into a production-style landing page and remove outdated two-layer wording in workflow docs.
+- [2026-02-23T03:05:12Z] progress: updated homepage structure, styling, and messaging; updated `docs/mining-workflow.md` to reflect three overlay planes.
+- [2026-02-23T03:10:47Z] handoff: pending completion of subagent bookkeeping and final handoff summary.
+- [2026-02-23T03:20:10Z] handoff: completed docs production pass; validated updates in `docs/index.md`, `docs/mining-workflow.md`, `docs/development.md`, and subagent protocol files.
+
+## Files Touched
+- `docs/index.md`
+- `docs/mining-workflow.md`
+- `docs/subagents/INDEX.md`
+- `docs/subagents/collaboration.md`
+
+## Assumptions
+- Repo overlay behavior now uses three overlay planes (visible, invisible, secondary), and docs should reflect that in user-facing guides.
+
+## Open Questions / Blockers
+- None.
+
+## Next Step
+- Update subagent index/collaboration rows, then finalize with summary of docs cleanup.

docs/subagents/agents/codex-overlay-three-window-layout-20260223T021606Z-9z2t.md

@@ -41,6 +41,7 @@
 - `2026-02-23T02:24:10Z` implementation: added `secondary` overlay window kind/wiring, overlay-manager secondary window ownership, and geometry split helper (`top 20%` secondary + `bottom 80%` primary).
 - `2026-02-23T02:27:40Z` renderer updates: added `secondary` layer detection, disabled measurement reports for secondary layer, and CSS layer split (secondary hidden in primary layers; subtitle/modals hidden in secondary layer).
 - `2026-02-23T02:29:51Z` validation: `bun run tsc --noEmit`; `bun test src/main/runtime/overlay-window-factory.test.ts src/main/runtime/overlay-window-factory-main-deps.test.ts src/main/runtime/overlay-window-runtime-handlers.test.ts src/renderer/error-recovery.test.ts src/core/services/overlay-window.test.ts`; `bun run build`; `node --test dist/core/services/overlay-manager.test.js`.
+- `2026-02-23T02:44:37Z` backlog sync: updated `TASK-110` with final summary + commit reference (`b8f7d5e`).
 
 ## Files Touched
 

docs/subagents/agents/opencode-task110-backlog-sync-20260223T025059Z-k3m7.md

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+# Agent: `opencode-task110-backlog-sync-20260223T025059Z-k3m7`
+
+- alias: `opencode-task110-backlog-sync`
+- mission: `Verify TASK-110 completion state and synchronize backlog metadata with plan-first workflow.`
+- status: `handoff`
+- branch: `main`
+- started_at: `2026-02-23T02:50:59Z`
+- heartbeat_minutes: `5`
+
+## Current Work (newest first)
+
+- [2026-02-23T02:53:30Z] completed: wrote closure plan artifact, recorded plan on TASK-110, verified commit/code evidence (including parallel subagent checks), and appended verification note in backlog while keeping status `Done`.
+- [2026-02-23T02:52:40Z] progress: dispatched parallel subagents for commit-scope audit and implementation-evidence audit; both confirmed AC alignment.
+- [2026-02-23T02:50:59Z] intent: load TASK-110 context from Backlog MCP, write closure verification plan, execute plan, and update backlog metadata if any gap remains.
+- [2026-02-23T02:50:59Z] assumptions: TASK-110 implementation already landed; this pass is verification + backlog synchronization only.
+
+## Files Touched
+
+- `docs/subagents/INDEX.md`
+- `docs/subagents/collaboration.md`
+- `docs/subagents/agents/opencode-task110-backlog-sync-20260223T025059Z-k3m7.md`
+- `docs/plans/2026-02-23-task-110-overlay-closure-verification.md`
+- `backlog/tasks/task-110 - Split-overlay-into-top-secondary-bar-and-bottom-primary-region.md` (via Backlog MCP)
+
+## Assumptions
+
+- Backlog MCP task record is source of truth for completion state.
+- No code edits are required unless validation uncovers missing closure evidence.
+
+## Open Questions / Blockers
+
+- None.
+
+## Next Step
+
+- Await user confirmation; no further TASK-110 work required unless additional closure metadata is requested.