fix: make embed command respect config embeddings.model

The CLI embed command hardcoded 'minilm' as the default model via
Commander, ignoring .codegraphrc.json config entirely. Now the embed
command reads config.embeddings.model as the default when no -m flag
is passed. Also fixes DEFAULTS.embeddings.model from 'nomic-v1.5' to
'minilm' to match the actual fallback used by the embedder, and updates
the models command to show the configured default.

Author: github-actions[bot]

src/cli.js

@@ -423,12 +423,13 @@ program
   .command('models')
   .description('List available embedding models')
   .action(() => {
+    const defaultModel = config.embeddings?.model || 'minilm';
     console.log('\nAvailable embedding models:\n');
-    for (const [key, config] of Object.entries(MODELS)) {
-      const def = key === 'minilm' ? ' (default)' : '';
-      const ctx = config.contextWindow ? `${config.contextWindow} ctx` : '';
+    for (const [key, cfg] of Object.entries(MODELS)) {
+      const def = key === defaultModel ? ' (default)' : '';
+      const ctx = cfg.contextWindow ? `${cfg.contextWindow} ctx` : '';
       console.log(
-        `  ${key.padEnd(12)} ${String(config.dim).padStart(4)}d  ${ctx.padEnd(9)} ${config.desc}${def}`,
+        `  ${key.padEnd(12)} ${String(cfg.dim).padStart(4)}d  ${ctx.padEnd(9)} ${cfg.desc}${def}`,
       );
     }
     console.log('\nUsage: codegraph embed --model <name> --strategy <structured|source>');
@@ -442,8 +443,7 @@ program
   )
   .option(
     '-m, --model <name>',
-    'Embedding model: minilm (default), jina-small, jina-base, jina-code, nomic, nomic-v1.5, bge-large. Run `codegraph models` for details',
-    'minilm',
+    'Embedding model (default from config or minilm). Run `codegraph models` for details',
   )
   .option(
     '-s, --strategy <name>',
@@ -458,7 +458,8 @@ program
       process.exit(1);
     }
     const root = path.resolve(dir || '.');
-    await buildEmbeddings(root, opts.model, undefined, { strategy: opts.strategy });
+    const model = opts.model || config.embeddings?.model || 'minilm';
+    await buildEmbeddings(root, model, undefined, { strategy: opts.strategy });
   });
 
 program

src/config.js

@@ -20,7 +20,7 @@ export const DEFAULTS = {
     defaultLimit: 20,
     excludeTests: false,
   },
-  embeddings: { model: 'nomic-v1.5', llmProvider: null },
+  embeddings: { model: 'minilm', llmProvider: null },
   llm: { provider: null, model: null, baseUrl: null, apiKey: null, apiKeyCommand: null },
   search: { defaultMinScore: 0.2, rrfK: 60, topK: 15 },
   ci: { failOnCycles: false, impactThreshold: null },

tests/unit/config.test.js

@@ -55,7 +55,7 @@ describe('DEFAULTS', () => {
   });
 
   it('has embeddings defaults', () => {
-    expect(DEFAULTS.embeddings).toEqual({ model: 'nomic-v1.5', llmProvider: null });
+    expect(DEFAULTS.embeddings).toEqual({ model: 'minilm', llmProvider: null });
   });
 
   it('has llm defaults', () => {