docs(type_registry): regenerate for Phase 1-5 new modules

Auto-generated by scripts/generate_type_registry.py after the Phase
2 + 4 + 5 commits. These were untracked in the working tree because
commit 4a774eb3 was made before Phase 5 (api_hooks) committed.

NEW files (5):
- docs/type_registry/src_mcp_tool_specs.md (Phase 1; ToolSpec + ToolParameter)
- docs/type_registry/src_openai_schemas.md (Phase 2; ToolCall + ChatMessage + UsageStats + NormalizedResponse + OpenAICompatibleRequest)
- docs/type_registry/src_provider_state.md (Phase 3 partial; ProviderHistory + _PROVIDER_HISTORIES)
- docs/type_registry/src_api_hooks.md (Phase 5; WebSocketMessage)
- docs/type_registry/src_log_registry.md (Phase 4; Session + SessionMetadata)

Verified:
  uv run python scripts/generate_type_registry.py --check
    Registry in sync (22 files checked)

These 5 .md files were generated after the Phase 5 commit (e9fa69dd)
and the Phase 4 commit (fef6c20e); they were left in the working tree
because commit 4a774eb3 (verify) was made after the Phase 2 registry
regen but before Phase 4/5 changes were fully committed.

docs/type_registry/src_api_hooks.md

@@ -0,0 +1,13 @@
+# Module: `src\api_hooks.py`
+
+Auto-generated from source. 1 struct(s) defined in this module.
+
+## `src\api_hooks.py::WebSocketMessage`
+
+**Kind:** `dataclass`
+**Defined at:** line 21
+
+**Fields:**
+- `channel: str`
+- `payload: JsonValue`
+

docs/type_registry/src_log_registry.md

@@ -0,0 +1,30 @@
+# Module: `src\log_registry.py`
+
+Auto-generated from source. 2 struct(s) defined in this module.
+
+## `src\log_registry.py::Session`
+
+**Kind:** `dataclass`
+**Defined at:** line 74
+
+**Fields:**
+- `session_id: str`
+- `path: str`
+- `start_time: str`
+- `whitelisted: bool`
+- `metadata: Optional[SessionMetadata]`
+
+
+## `src\log_registry.py::SessionMetadata`
+
+**Kind:** `dataclass`
+**Defined at:** line 54
+
+**Fields:**
+- `message_count: int`
+- `errors: int`
+- `size_kb: int`
+- `whitelisted: bool`
+- `reason: str`
+- `timestamp: Optional[str]`
+

docs/type_registry/src_mcp_tool_specs.md

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+# Module: `src\mcp_tool_specs.py`
+
+Auto-generated from source. 2 struct(s) defined in this module.
+
+## `src\mcp_tool_specs.py::ToolParameter`
+
+**Kind:** `dataclass`
+**Defined at:** line 26
+
+**Fields:**
+- `name: str`
+- `type: str`
+- `description: str`
+- `required: bool`
+- `enum: tuple[str, ...] | None`
+
+
+## `src\mcp_tool_specs.py::ToolSpec`
+
+**Kind:** `dataclass`
+**Defined at:** line 41
+
+**Fields:**
+- `name: str`
+- `description: str`
+- `parameters: tuple[ToolParameter, ...]`
+

docs/type_registry/src_openai_schemas.md

@@ -0,0 +1,79 @@
+# Module: `src\openai_schemas.py`
+
+Auto-generated from source. 6 struct(s) defined in this module.
+
+## `src\openai_schemas.py::ChatMessage`
+
+**Kind:** `dataclass`
+**Defined at:** line 47
+
+**Fields:**
+- `role: str`
+- `content: str`
+- `tool_calls: Optional[tuple[ToolCall, ...]]`
+- `tool_call_id: Optional[str]`
+- `name: Optional[str]`
+
+
+## `src\openai_schemas.py::NormalizedResponse`
+
+**Kind:** `dataclass`
+**Defined at:** line 74
+
+**Fields:**
+- `text: str`
+- `tool_calls: tuple[ToolCall, ...]`
+- `usage: UsageStats`
+- `raw_response: Any`
+
+
+## `src\openai_schemas.py::OpenAICompatibleRequest`
+
+**Kind:** `dataclass`
+**Defined at:** line 95
+
+**Fields:**
+- `messages: list[ChatMessage]`
+- `model: str`
+- `temperature: float`
+- `top_p: float`
+- `max_tokens: int`
+- `tools: Optional[list[dict[str, Any]]]`
+- `tool_choice: str`
+- `stream: bool`
+- `stream_callback: Optional[Callable[[str], None]]`
+- `extra_body: Optional[dict[str, Any]]`
+
+
+## `src\openai_schemas.py::ToolCall`
+
+**Kind:** `dataclass`
+**Defined at:** line 30
+
+**Fields:**
+- `id: str`
+- `function: ToolCallFunction`
+- `type: str`
+
+
+## `src\openai_schemas.py::ToolCallFunction`
+
+**Kind:** `dataclass`
+**Defined at:** line 24
+
+**Fields:**
+- `name: str`
+- `arguments: str`
+
+
+## `src\openai_schemas.py::UsageStats`
+
+**Kind:** `dataclass`
+**Defined at:** line 66
+
+**Fields:**
+- `input_tokens: int`
+- `output_tokens: int`
+- `cache_read_tokens: int`
+- `cache_creation_tokens: int`
+

docs/type_registry/src_provider_state.md

@@ -0,0 +1,13 @@
+# Module: `src\provider_state.py`
+
+Auto-generated from source. 1 struct(s) defined in this module.
+
+## `src\provider_state.py::ProviderHistory`
+
+**Kind:** `dataclass`
+**Defined at:** line 26
+
+**Fields:**
+- `messages: list[HistoryMessage]`
+- `lock: threading.Lock`
+