feat: add AI descriptions and platform submission checks

backend/app/ai/contracts.py

@@ -13,9 +13,15 @@ class ModelSettingsInput(Contract):
     base_url: str = Field(max_length=2000)
     api_key: SecretStr | None = None
     model: str = Field(min_length=1, max_length=200)
+    description_model: str = Field(default="", max_length=200)
     protocol: Literal["chat_completions", "responses"] = "chat_completions"
     enabled: bool = False
 
+    @field_validator("description_model")
+    @classmethod
+    def clean_description_model(cls, value):
+        return value.strip()
+
     @field_validator("base_url")
     @classmethod
     def valid_url(cls, value):

backend/app/ai/routes.py

@@ -18,6 +18,7 @@ def settings_output(row):
     return {
         "base_url": row.base_url,
         "model": row.model,
+        "description_model": row.description_model,
         "protocol": row.protocol,
         "configured": bool(row.api_key_encrypted),
         "enabled": row.enabled,
@@ -49,6 +50,8 @@ def router(runtime):
                     row.revision += 1
                     row.tested_revision, row.test_results = None, {}
                 row.base_url, row.model, row.protocol = body.base_url, body.model, body.protocol
+                if "description_model" in body.model_fields_set:
+                    row.description_model = body.description_model
                 if key:
                     row.api_key_encrypted = cipher(runtime.settings).encrypt(key.encode()).decode()
                 row.enabled = body.enabled and row.tested_revision == row.revision