fix(daemon): surface Claude 5-generation models in the Claude Code picker (#6529)

CLAUDE_FALLBACK_MODELS stopped at the 4.5 generation, so users whose
~/.config/mms/model-routes.json is absent or stale (the Claude Code CLI
does not currently sync claude-opus-5 into it) cannot pick claude-opus-5
without typing it as a custom model string. Add the claude-opus-5,
claude-sonnet-5 and claude-fable-5 ids to the fallback list.

Also pin the answer to the #6529 AMR question in a regression test:
vela model list --all --format json returns BARE major-only ids for the
5-generation (verified against the live AMR endpoint), which must pass
through normalizeVelaModelId unchanged via the underscore fallback since
the versioned regex requires major AND minor.

Fixes #6529

Author: ferrarifankid04

apps/daemon/src/runtimes/defs/claude.ts

@@ -8,6 +8,9 @@ const CLAUDE_FALLBACK_MODELS = [
   { id: 'sonnet', label: 'Sonnet (alias)' },
   { id: 'opus', label: 'Opus (alias)' },
   { id: 'haiku', label: 'Haiku (alias)' },
+  { id: 'claude-opus-5', label: 'claude-opus-5' },
+  { id: 'claude-sonnet-5', label: 'claude-sonnet-5' },
+  { id: 'claude-fable-5', label: 'claude-fable-5' },
   { id: 'claude-opus-4-5', label: 'claude-opus-4-5' },
   { id: 'claude-sonnet-4-5', label: 'claude-sonnet-4-5' },
   { id: 'claude-haiku-4-5', label: 'claude-haiku-4-5' },

apps/daemon/tests/amr-acp-integration.test.ts

@@ -168,6 +168,20 @@ describe('AMR runtime def', () => {
     expect(ids).toEqual([]);
   });
 
+  it('passes major-only claude ids through unchanged (#6529)', () => {
+    // `vela model list --all --format json` returns BARE major-only ids for
+    // the 5-generation (verified against the live AMR endpoint: the JSON `id`
+    // is exactly "claude-opus-5", not a dated form). The versioned regex in
+    // normalizeKnownVelaVersionId requires major AND minor, so these must
+    // fall through to the underscore fallback and come back untouched —
+    // a regression here is how a model "disappears" from the picker.
+    expect(normalizeVelaModelId('claude-opus-5')).toBe('claude-opus-5');
+    expect(normalizeVelaModelId('claude-sonnet-5')).toBe('claude-sonnet-5');
+    expect(normalizeVelaModelId('claude-fable-5')).toBe('claude-fable-5');
+    // Dated major.minor forms keep normalizing as before.
+    expect(normalizeVelaModelId('claude_opus_4_8')).toBe('claude-opus-4.8');
+  });
+
   it('normalizes Vela public model ids to link-canonical ACP model ids', () => {
     expect(normalizeVelaModelId('public_model_deepseek_v3_2')).toBe('deepseek-v3.2');
     expect(normalizeVelaModelId('public_model_kimi_k2_6')).toBe('kimi-k2.6');