fix(rain): keep Goose agent turns on DeepSeek, not Cursor chat bridge.

Cursor bridge PoC rejects tool calls; Rain and other agent sessions must not
apply it during session provider selection.

Co-authored-by: Cursor <cursoragent@cursor.com>

tkmind-proxy.mjs

@@ -1572,7 +1572,7 @@ export function createTkmindProxy({
           : null,
       },
     );
-    await applySessionLlmProvider(session.id, { userId });
+    await applySessionLlmProvider(session.id, { userId, intentKind: 'agent_orchestration' });
     return session;
   }
 
@@ -2053,7 +2053,14 @@ export function createTkmindProxy({
       forceDeepReasoning,
       disableImageReading: disableImageReading || visionHandlesThisTurn,
     });
-    await applySessionLlmProvider(sessionId, { userId });
+    await applySessionLlmProvider(sessionId, {
+      userId,
+      intentKind:
+        userMessage?.metadata?.memindRun?.rainHandoff === true
+        || userMessage?.metadata?.memindRun?.rainMode === true
+          ? 'rain'
+          : 'agent_orchestration',
+    });
     await repairSessionToolHistory(sessionId);
 
     const user = await userAuth.getUserById(userId);
@@ -2432,7 +2439,10 @@ export function createTkmindProxy({
               });
               return;
             }
-            await applySessionLlmProvider(session.id, { userId: req.currentUser.id });
+            await applySessionLlmProvider(session.id, {
+              userId: req.currentUser.id,
+              intentKind: 'agent_orchestration',
+            });
           }
           res.status(upstream.status).json(session);
         } catch (err) {
@@ -2517,7 +2527,10 @@ export function createTkmindProxy({
             }
           }
 
-          await applySessionLlmProvider(sessionId, { userId: req.currentUser.id });
+          await applySessionLlmProvider(sessionId, {
+            userId: req.currentUser.id,
+            intentKind: 'agent_orchestration',
+          });
 
           res.status(upstream.status).json(payload);
         } catch (err) {