chore: align local-first control plane and editor fixes

- wire SQLite control-plane access/session paths into Rust web local-folder routes

- preserve local Markdown attachment semantics across upload, reload, and secondary-pane resource tabs

- refresh design governance docs, Reasonix task templates, and bug records

- retire root .mcp.json local MCP config

.agent-templates/smoke.md

@@ -0,0 +1,49 @@
+# Smoke: <title>
+
+## Metadata
+
+- Run ID: `<run-id>`
+- Tester: `reasonix-flash`
+- Target worktree / branch: `<branch-or-main>`
+- Evidence directory: `<absolute-evidence-dir>`
+- URL: `<url>`
+
+## Scope
+
+What this smoke test validates.
+
+## Browser actions
+
+- [ ] Navigate to `<url>`
+- [ ] Login / setup state if needed
+- [ ] Click: ...
+- [ ] Hover: ...
+- [ ] Drag: ...
+- [ ] Select: ...
+
+## Result
+
+PASS / FAIL / BLOCKED
+
+## Evidence
+
+- Final URL:
+- Screenshot:
+- Console errors:
+- Network errors:
+- Visible text sample:
+
+## Findings
+
+### Issue 1
+
+- Expected:
+- Actual:
+- Reproduction:
+- Evidence:
+
+## Cleanup
+
+- Test data created:
+- Test data cleaned:
+- Residual state: