feat(assistant): #91 steps humains en direct + outils web_search/fetch_url (labels backend, SSE step, garde SSRF)

backend/tools/schemas.py

@@ -237,6 +237,22 @@ class RestoreBackupInput(BaseModel):
     version: int = Field(..., description="Backup timestamp to restore")
 
 
+class WebSearchInput(BaseModel):
+    """Search the public web through the configured meta-search engine."""
+
+    query: str = Field(..., description="Search terms")
+    max_results: int = Field(5, ge=1, le=10, description="Number of results to return")
+    category: str = Field("", description="Optional engine category: general, news, it, science")
+    language: str = Field("", description="Optional language code, e.g. 'fr'")
+    page: int = Field(1, ge=1, le=10, description="Result page number")
+
+
+class FetchUrlInput(BaseModel):
+    """Fetch one public web page and return its readable text."""
+
+    url: str = Field(..., description="Absolute http(s) URL of a public page")
+
+
 class ToolResult(BaseModel):
     """Uniform result returned by :func:`backend.tools.registry.call_tool`."""