Feature/fsg gamma team ui fix (#3)

## Summary

What changed and why?

## Change Type

- [ ] Cowork feature
- [ ] Bug fix
- [x] Core AI contribution
- [ ] Test / hardening
- [ ] Performance
- [ ] Documentation

## Related Work

Cowork Task:

Core Repo: http://34.143.229.138/gitea-admin/fsg-ai-core-assets

Core AI Issue:

Core Task:

Related PR:

## Scope

What is intentionally included?

What is intentionally NOT included?

## Validation

- [ ] Unit tests
- [ ] Integration tests
- [ ] Manual verification
- [ ] Regression check

Commands / evidence:

## Security Impact

Permission / credential / network / customer data impact:

## Compatibility

- [ ] No breaking change
- [ ] Breaking change documented

## Reviewer Notes

Anything Cowork reviewers should pay attention to.

---------

Co-authored-by: Hiep Ha Van <hiephv3@fpt.com>
Co-authored-by: Nam Pham Dinh Thanh <nampdt@fpt.com>
Co-authored-by: Lam Hoang Van <lamhv7@fpt.com>
Co-authored-by: NamPDT <minhanhpkpro@gmail.com>
Reviewed-on: #3

ui/ext_connector_dialog.py

@@ -16,9 +16,14 @@ from PySide6.QtWidgets import (
     QLineEdit, QMessageBox, QPushButton, QStackedWidget, QVBoxLayout, QWidget,
 )
 
-from ..core.ext_connectors import PRESETS
+from ..core.ext_connectors import CATEGORIES, PRESETS
 from ..i18n import tr
 
+# ms365 has no user-created entries here (see ConnectorsPanel) — it auto-connects
+# via its own built-in OneDrive/SharePoint toggles, so it's left off this picker.
+_PICKABLE_CATEGORIES = tuple(c for c in CATEGORIES if c != "ms365")
+_CATEGORY_LABEL = {"cad": "CAD", "cae": "CAE", "other": "Other"}
+
 
 class ExtConnectorEditDialog(QDialog):
     def __init__(self, parent=None, category: str = "cad", connector: Optional[dict] = None):
@@ -32,10 +37,20 @@ class ExtConnectorEditDialog(QDialog):
         lay = QVBoxLayout(self)
 
         form = QFormLayout()
+        # Category picker — the single "+ Thêm connector…" button (Monitoring ▸
+        # Công cụ ▸ Connector) has no tree selection to infer this from anymore,
+        # so the dialog itself asks. Fixed once created, same as the preset.
+        self.category_combo = QComboBox()
+        for cat in _PICKABLE_CATEGORIES:
+            self.category_combo.addItem(_CATEGORY_LABEL.get(cat, cat), cat)
+        idx = self.category_combo.findData(self.category)
+        self.category_combo.setCurrentIndex(max(0, idx))
+        self.category_combo.setEnabled(not editing)
+        self.category_combo.currentIndexChanged.connect(self._on_category_changed)
+        form.addRow(tr("ext.category_label"), self.category_combo)
+
         self.preset_combo = QComboBox()
-        self.preset_combo.addItem(tr("ext.preset_custom"), "")
-        for p in PRESETS.get(self.category, []):
-            self.preset_combo.addItem(p["name"], p["id"])
+        self._reload_presets()
         if editing:
             self.preset_combo.setEnabled(False)  # identity fixed once created
         form.addRow(tr("ext.preset_label"), self.preset_combo)
@@ -105,6 +120,18 @@ class ExtConnectorEditDialog(QDialog):
         buttons.rejected.connect(self.reject)
         lay.addWidget(buttons)
 
+    def _reload_presets(self) -> None:
+        self.preset_combo.blockSignals(True)
+        self.preset_combo.clear()
+        self.preset_combo.addItem(tr("ext.preset_custom"), "")
+        for p in PRESETS.get(self.category, []):
+            self.preset_combo.addItem(p["name"], p["id"])
+        self.preset_combo.blockSignals(False)
+
+    def _on_category_changed(self) -> None:
+        self.category = self.category_combo.currentData() or self.category
+        self._reload_presets()
+
     def _apply_preset(self) -> None:
         preset_id = self.preset_combo.currentData()
         if preset_id and not self.name_edit.text().strip():