docs(validation): update agent configs, skills, ADRs, specs

- qa-tester: add validation v2 testing checklist
- speckit.plan: add component reuse scan for frontend
- molecular-cot-logging: add Svelte logger + CLI reader
- semantics-svelte: add RSM model-first protocol, frontend stack
- templates: update plan/tasks/ux-reference templates
- ADR-0004: add llm_dashboard_validation plugin registration
- ADR-0008: add assistant tool registry for v2 validation
- Specs: update 017 tasks from 51 to 99

.opencode/skills/semantics-svelte/SKILL.md

@@ -277,6 +277,21 @@ search_contracts query="users" type="Model"
 Frontend logging uses `log()` from `$lib/cot-logger`, emitting **JSON lines** per MolecularCoTLogging protocol.
 Import: `import { log } from "$lib/cot-logger";`
 
+The logger is a TypeScript module at `frontend/src/lib/cot-logger.ts` with full type support:
+
+```typescript
+import { log } from "$lib/cot-logger";
+
+// Before an operation:
+log("ComponentName", "REASON", "What we are about to do", { param: value });
+
+// After successful verification:
+log("ComponentName", "REFLECT", "Operation completed", { result: value });
+
+// On error or fallback:
+log("ComponentName", "EXPLORE", "Operation failed", { param: value }, "Error description");
+```
+
 ### Marker Reference
 
 | Marker | When | Signature |