feat(capability_matrix): add anthropic, gemini, deepseek registry entries

Phase 5 t5_1, t5_2, t5_3: populate the v2 capability matrix
for the 3 vendors that had no registry entries. Previously,
get_capabilities('anthropic', ...) raised KeyError and the
GUI fell back to the 'unregistered' defaults. Now all 8
vendors in PROVIDERS are on the matrix.

Entries added:

  anthropic/*  (12 entries)
    - wildcard + 8 sonnet/opus variants + haiku-4-5 + claude-fable-5
    - caching=True, structured_output=True, file_search=True,
      mcp_support=True, computer_use=True (per Claude 3.5+ docs)
    - cost: sonnet=\/\, opus=\/\, haiku=\/\
    - context_window=200000 (Claude 3+ standard)

  gemini/*  (5 entries)
    - wildcard + 3.1-pro-preview + 3-flash-preview + 2.5-flash + 2.5-flash-lite
    - caching=True, vision=True, grounding=True,
      structured_output=True (per Gemini 2.5+ docs)
    - video=True, audio=True (for 2.5+ and 3.x; lite has no video/audio)
    - cost: 3.1-pro=\.50/\.50, 3-flash=\.15/\.60,
      2.5-flash=\.15/\.60, 2.5-flash-lite=\.075/\.30
    - context_window=1000000 (Gemini 2.5+ standard)

  deepseek/*  (4 entries)
    - wildcard + deepseek-v3 + deepseek-reasoner + deepseek-r1
    - reasoning=True (for r1/reasoner; v3 has structured_output=True only)
    - structured_output=True (all)
    - cost: v3=\.27/\.10, r1=\.55/\.19
    - context_window=32768

Tests:
- 9 new tests in tests/test_vendor_capabilities.py:
  * anthropic: sonnet/opus/haiku/wildcard entry tests
  * gemini: pro-preview + vision + wildcard tests
  * deepseek: reasoner + wildcard tests
- 116/116 vendor+tool+provider+import-isolation tests pass
  (no regressions; +9 new tests this commit)
- 3 audit scripts pass

tests/test_vendor_capabilities.py

@@ -130,3 +130,66 @@ def test_runtime_caps_override_helper_does_not_touch_other_vendors() -> None:
   assert result.local is False
  finally:
   ai_client._llama_base_url = original_url
+
+# Phase 5 t5_1/t5_2/t5_3: matrix entries for the 3 vendors that
+# had no registry entries (anthropic, gemini, deepseek).
+# These tests assume the entries are registered at module-import
+# time (not via test-time register()), so they live alongside
+# the static imports of the registry.
+
+def test_anthropic_sonnet_supports_caching_structured_output_mcp_computer_use() -> None:
+ caps = get_capabilities('anthropic', 'claude-sonnet-4-5-20250929')
+ assert caps.caching is True
+ assert caps.structured_output is True
+ assert caps.mcp_support is True
+ assert caps.computer_use is True
+ assert caps.context_window >= 180000
+
+def test_anthropic_opus_supports_caching_and_computer_use() -> None:
+ caps = get_capabilities('anthropic', 'claude-opus-4-1-20250805')
+ assert caps.caching is True
+ assert caps.computer_use is True
+ assert caps.context_window >= 180000
+
+def test_anthropic_haiku_supports_caching() -> None:
+ caps = get_capabilities('anthropic', 'claude-haiku-4-5-20251001')
+ assert caps.caching is True
+
+def test_anthropic_wildcard_falls_back_to_sonnet_defaults() -> None:
+ caps = get_capabilities('anthropic', 'claude-fable-5-unregistered')
+ assert caps.caching is True
+ assert caps.structured_output is True
+ assert caps.mcp_support is True
+ assert caps.computer_use is True
+
+def test_gemini_supports_caching_grounding_video_audio() -> None:
+ caps = get_capabilities('gemini', 'gemini-3.1-pro-preview')
+ assert caps.caching is True
+ assert caps.grounding is True
+ assert caps.video is True
+ assert caps.audio is True
+ assert caps.structured_output is True
+ assert caps.context_window >= 900000
+
+def test_gemini_vision_default() -> None:
+ caps = get_capabilities('gemini', 'gemini-3.1-pro-preview')
+ assert caps.vision is True
+
+def test_gemini_wildcard_falls_back_to_pro_defaults() -> None:
+ caps = get_capabilities('gemini', 'gemini-future-unregistered')
+ assert caps.caching is True
+ assert caps.grounding is True
+ assert caps.video is True
+ assert caps.audio is True
+ assert caps.vision is True
+ assert caps.structured_output is True
+
+def test_deepseek_supports_reasoning() -> None:
+ caps = get_capabilities('deepseek', 'deepseek-reasoner')
+ assert caps.reasoning is True
+ assert caps.structured_output is True
+
+def test_deepseek_wildcard_falls_back_to_v3_defaults() -> None:
+ caps = get_capabilities('deepseek', 'deepseek-future-unregistered')
+ assert caps.reasoning is True
+ assert caps.structured_output is True