fix(cli): treat omitted sentence-transformers base_url as managed daemon (#194)

After PR #184 and #192 moved managed-embeddings URL resolution to the
CLI project boundary and made `ktx setup` persist `ktx.yaml` without a
`base_url`, the status command still treated the empty value as
misconfiguration and printed "no base_url configured", dragging the
verdict down to "Partially ready — embedding credentials missing".

Update `buildEmbeddingsStatus` to recognize the managed-daemon
convention and report it as ok. Add a `status-project.test.ts` covering
the explicit-url, omitted, empty-string, and openai-missing-key paths.

packages/cli/src/status-project.ts

@@ -267,9 +267,8 @@ function buildEmbeddingsStatus(config: KtxProjectEmbeddingConfig, env: NodeJS.Pr
       backend,
       model,
       dimensions,
-      status: 'warn',
-      detail: 'no base_url configured',
-      fix: 'Rerun `ktx setup`',
+      status: 'ok',
+      detail: 'managed local embeddings daemon',
     };
   }
   return { backend, model, dimensions, status: 'warn', detail: 'unknown embedding backend' };