fix: load model_overrides from config and use resolveModelInternal in CLI

loadConfig() never returned model_overrides, so resolveModelInternal()
could never find per-agent overrides — they were silently ignored.

Additionally, cmdResolveModel duplicated model resolution logic but
skipped the override check entirely. Now delegates to resolveModelInternal
so both code paths behave consistently.

get-shit-done/bin/lib/commands.cjs

@@ -204,17 +204,12 @@ function cmdResolveModel(cwd, agentType, raw) {
 
   const config = loadConfig(cwd);
   const profile = config.model_profile || 'balanced';
+  const model = resolveModelInternal(cwd, agentType);
 
   const agentModels = MODEL_PROFILES[agentType];
-  if (!agentModels) {
-    const result = { model: 'sonnet', profile, unknown_agent: true };
-    output(result, raw, 'sonnet');
-    return;
-  }
-
-  const resolved = agentModels[profile] || agentModels['balanced'] || 'sonnet';
-  const model = resolved === 'opus' ? 'inherit' : resolved;
-  const result = { model, profile };
+  const result = agentModels
+    ? { model, profile }
+    : { model, profile, unknown_agent: true };
   output(result, raw, model);
 }
 

get-shit-done/bin/lib/core.cjs

@@ -104,6 +104,7 @@ function loadConfig(cwd) {
       verifier: get('verifier', { section: 'workflow', field: 'verifier' }) ?? defaults.verifier,
       parallelization,
       brave_search: get('brave_search') ?? defaults.brave_search,
+      model_overrides: parsed.model_overrides || null,
     };
   } catch {
     return defaults;