feat(stats): add v1 immersion stats dashboard (#19)

docs/workflow/verification.md

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+<!-- read_when: choosing what tests/build steps to run before handoff -->
+
+# Verification
+
+Status: active  
+Last verified: 2026-03-13  
+Owner: Kyle Yasuda  
+Read when: selecting the right verification lane for a change
+
+## Default Handoff Gate
+
+```bash
+bun run typecheck
+bun run test:fast
+bun run test:env
+bun run build
+bun run test:smoke:dist
+```
+
+If `docs-site/` changed, also run:
+
+```bash
+bun run docs:test
+bun run docs:build
+```
+
+## Cheap-First Lane Selection
+
+- Docs-only boundary/content changes: `bun run docs:test`, `bun run docs:build`
+- Internal KB / `AGENTS.md` changes: `bun run test:docs:kb`
+- Config/schema/defaults: `bun run test:config`, then `bun run generate:config-example` if template/defaults changed
+- Launcher/plugin: `bun run test:launcher` or `bun run test:env`
+- Runtime-compat / compiled behavior: `bun run test:runtime:compat`
+- Deep/local full gate: default handoff gate above
+
+## Rules
+
+- Capture exact failing command and error when verification breaks.
+- Prefer the cheapest sufficient lane first.
+- Escalate when the change crosses boundaries or touches release-sensitive behavior.
+- Never hand-edit `dist/launcher/subminer`; validate it through build/test flow instead.