refactor(config): slim resolver facade and expand regression lanes

Collapse src/config/resolve.ts into an orchestrated pipeline over domain modules, wire launcher regression coverage into test scripts, and sync backlog/subagent tracking artifacts for completed TASK-74/TASK-96/TASK-98 follow-up planning.

docs/subagents/agents/codex-docs-unpushed-review-20260221T213707Z-lyej.md

@@ -0,0 +1,32 @@
+# Agent Session: codex-docs-unpushed-review-20260221T213707Z-lyej
+
+- alias: `codex-docs-unpushed-review`
+- mission: `Review unpushed commits for docs drift; patch docs to reflect current code/state`
+- status: `in_progress`
+- started_utc: `2026-02-21T21:37:07Z`
+- heartbeat_minutes: `5`
+
+## Intent
+
+- audit `origin/main..HEAD` commit set
+- compare code/runtime/test-script changes against user-facing docs
+- patch stale docs only; avoid unrelated code churn
+
+## Planned Files
+
+- `docs/development.md` (verify test lane + build guidance)
+- `docs/architecture.md` (verify runtime composer/domain registry narrative)
+- `docs/configuration.md` (verify config discovery semantics if needed)
+- `docs/launcher-script.md` (verify launcher test coverage + mpv socket behavior)
+- `docs/subagents/INDEX.md` (own row heartbeat/status only)
+- `docs/subagents/collaboration.md` (cross-agent notes/conflicts)
+
+## Assumptions
+
+- scope = unpushed commits (`origin/main..HEAD`) + doc drift for current working state
+- Backlog MCP not initialized (`backlog://init-required`); no enforceable ticket link in this run
+- existing dirty workspace includes other agents/user edits; do not revert or normalize unrelated files
+
+## Log
+
+- `2026-02-21T21:37:07Z` start; loaded subagent index/collaboration/backlog state; collecting unpushed commit/doc impact matrix.