Fix build error and model label when using remote embedding

- Add intent? to LLM interface and ILLMSession expandQuery signature
  (store.ts passes { intent } but interface didn't declare it — tsc error)
- Derive embed model label from getDefaultLLM().embedModelName after
  getStore() so content_vectors.model reflects the actual LLM in use
  (previously always stored DEFAULT_EMBED_MODEL_URI even with remote)

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

Author: Jim Smith

src/cli/qmd.ts

@@ -1686,6 +1686,9 @@ async function vectorIndex(
   const storeInstance = getStore();
   const db = storeInstance.db;
 
+  // Use the actual model name from the configured LLM (may be remote, not the default GGUF URI)
+  model = getDefaultLLM().embedModelName;
+
   if (force) {
     console.log(`${c.yellow}Force re-indexing: clearing all vectors...${c.reset}`);
   }

src/llm.ts

@@ -169,7 +169,7 @@ export type LLMSessionOptions = {
 export interface ILLMSession {
   embed(text: string, options?: EmbedOptions): Promise<EmbeddingResult | null>;
   embedBatch(texts: string[], options?: EmbedOptions): Promise<(EmbeddingResult | null)[]>;
-  expandQuery(query: string, options?: { context?: string; includeLexical?: boolean }): Promise<Queryable[]>;
+  expandQuery(query: string, options?: { context?: string; includeLexical?: boolean; intent?: string }): Promise<Queryable[]>;
   rerank(query: string, documents: RerankDocument[], options?: RerankOptions): Promise<RerankResult>;
   /** Whether this session is still valid (not released or aborted) */
   readonly isValid: boolean;
@@ -356,7 +356,7 @@ export interface LLM {
    * Expand a search query into multiple variations for different backends.
    * Returns a list of Queryable objects.
    */
-  expandQuery(query: string, options?: { context?: string, includeLexical?: boolean }): Promise<Queryable[]>;
+  expandQuery(query: string, options?: { context?: string; includeLexical?: boolean; intent?: string }): Promise<Queryable[]>;
 
   /**
    * Rerank documents by relevance to a query