chore(models): refresh the model catalog to current provider lineups

Verified each provider's hard-coded list against current official docs:
- MiniMax: add MiniMax-M3 (1M ctx, multimodal) as the default; keep M2.7 line.
- Qwen: use the live qwen{3.7,3.6}-{plus,max} IDs.
- GLM: add glm-5.2 as the latest flagship.
- xAI: drop deprecated grok-4-fast-* / grok-4-0709 builds.
- DeepSeek: migrate to deepseek-v4-pro / deepseek-v4-flash (the chat/reasoner
  aliases are deprecated 2026-07-24 and now map to V4 Flash).
OpenAI, Anthropic, and Gemini were already current and are unchanged.

tests/test_capabilities.py

@@ -48,7 +48,7 @@ class TestPatternMatches:
         caps = get_capabilities("deepseek-reasoner-pro")
         assert caps.supports_tool_choice is False
 
-    def test_future_minimax_m3_inherits_thinking_quirks(self):
+    def test_minimax_m3_inherits_thinking_quirks(self):
         caps = get_capabilities("MiniMax-M3")
         assert caps.supports_tool_choice is False