fix(copilot): resolve merge conflict with dev + fix test failures

- Resolve conflict in create_agent.py: keep both require_guide_read
  gate (from dev) and needs_build_plan_approval gate (from this branch)
- Fix create_agent_test.py: add decompose_goal + approval history to
  test sessions so needs_build_plan_approval gate passes
- Bump tool schema char budget from 32000 to 34000 (new decompose_goal
  tool descriptions pushed it past the old limit)
- Fix test_schedule_auto_approve_creates_task: use dynamic baseline
  (make_session now pre-populates guide_read message)
- Fix ruff F841 unused variable errors from dev merge
- Re-export openapi.json

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

autogpt_platform/backend/backend/copilot/tools/create_agent_test.py

@@ -4,6 +4,7 @@ from unittest.mock import MagicMock, patch
 
 import pytest
 
+from backend.copilot.model import ChatMessage
 from backend.copilot.tools.create_agent import CreateAgentTool
 from backend.copilot.tools.models import AgentPreviewResponse, ErrorResponse
 
@@ -13,6 +14,28 @@ _TEST_USER_ID = "test-user-create-agent"
 _PIPELINE = "backend.copilot.tools.agent_generator.pipeline"
 
 
+def _add_approval_history(session):
+    """Add decompose_goal + user approval to the session so the
+    needs_build_plan_approval gate passes."""
+    session.messages.append(
+        ChatMessage(
+            role="assistant",
+            content="",
+            tool_calls=[
+                {
+                    "id": "call_decompose",
+                    "type": "function",
+                    "function": {"name": "decompose_goal", "arguments": "{}"},
+                }
+            ],
+        )
+    )
+    session.messages.append(ChatMessage(role="tool", content="{plan}"))
+    session.messages.append(
+        ChatMessage(role="user", content="Approved. Please build the agent.")
+    )
+
+
 @pytest.fixture
 def tool():
     return CreateAgentTool()
@@ -20,7 +43,9 @@ def tool():
 
 @pytest.fixture
 def session():
-    return make_session(_TEST_USER_ID)
+    s = make_session(_TEST_USER_ID)
+    _add_approval_history(s)
+    return s
 
 
 # ── Input validation tests ──────────────────────────────────────────────

autogpt_platform/backend/backend/copilot/tools/tool_schema_test.py

@@ -14,8 +14,8 @@ import pytest
 
 from backend.copilot.tools import TOOL_REGISTRY
 
-# Character budget (~4 chars/token heuristic, targeting ~8000 tokens)
-_CHAR_BUDGET = 32_000
+# Character budget (~4 chars/token heuristic, targeting ~8500 tokens)
+_CHAR_BUDGET = 34_000
 
 
 @pytest.fixture(scope="module")