Adapt tests for pod_executor package and clean up mcp_forge

- Created tests/pod_executor/ with adapted tests from old locations
- tests/pod_executor/simple/test_executor.py: 17/17 tests passing
- tests/pod_executor/security/test_resource_limits.py: 22/23 tests passing

- Removed old test locations (will be deleted with mcp_forge cleanup)
- Fixed all corrupted files from sed/quote issues using Python scripts
- Removed mcp_forge dependencies from pod_executor:
  - Removed ForgeConfig from backend.py (explicit parameters)
  - Removed SessionConfig from sessions.py (explicit parameters)
  - Fixed all audit logger calls to use string-based events

- Updated mcp_forge/security/__init__.py:
  - Removed resource_limits imports (now in pod_executor)
  - Added comment directing to pod_executor.security.resource_limits

- Deleted from mcp_forge:
  - src/mcp_forge/execution/ (simple and jupyter backends)
  - src/mcp_forge/podman/ (container management)
  - src/mcp_forge/security/resource_limits.py

Total: 39/40 tests passing in pod_executor package

src/mcp_forge/security/__init__.py

@@ -1,11 +1,8 @@
 """Security module for resource validation and enforcement."""
 
-from .resource_limits import (
-    parse_memory_string,
-    parse_cpu_quota,
-    parse_storage_string,
-    ResourceLimits,
-)
+# Resource limits moved to pod_executor package
+# Import from pod_executor.security.resource_limits instead
+
 from .allowlist import (
     SecurityError,
     OperationValidator,
@@ -17,10 +14,6 @@ from .audit import (
 )
 
 __all__ = [
-    "parse_memory_string",
-    "parse_cpu_quota",
-    "parse_storage_string",
-    "ResourceLimits",
     "SecurityError",
     "OperationValidator",
     "AuditEventType",