feat(workspace): implement contextual auto-switch layout based on MMA active tier

src/app_controller.py

@@ -406,7 +406,9 @@ class AppController:
    'text_viewer_title': 'text_viewer_title',
    'text_viewer_type': 'text_viewer_type',
    'disc_entries': 'disc_entries',
-   'ui_file_paths': 'ui_file_paths'
+   'ui_file_paths': 'ui_file_paths',
+   'ui_auto_switch_layout': 'ui_auto_switch_layout',
+   'ui_tier_layout_bindings': 'ui_tier_layout_bindings'
   }
   self._gettable_fields = dict(self._settable_fields)
   self._gettable_fields.update({
@@ -800,8 +802,18 @@ class AppController:
      sys.stderr.flush()
      
      self.mma_status = p.get("status", self.mma_status)
+     
+     old_tier = self.active_tier
      self.active_tier = p.get("active_tier", self.active_tier)
      
+     if getattr(self, "ui_auto_switch_layout", False) and self.active_tier and self.active_tier != old_tier:
+      for tier_prefix in ["Tier 1", "Tier 2", "Tier 3", "Tier 4"]:
+       if self.active_tier.startswith(tier_prefix):
+        bound_profile = getattr(self, "ui_tier_layout_bindings", {}).get(tier_prefix)
+        if bound_profile:
+         self._cb_load_workspace_profile(bound_profile)
+        break
+     
      # Preserve existing model/provider config if not explicitly in payload
      new_usage = p.get("tier_usage", {})
      for tier, data in new_usage.items():
@@ -1121,6 +1133,8 @@ class AppController:
   self.ui_project_preset_name = proj_meta.get("active_preset")
   
   gui_cfg = self.config.get("gui", {})
+  self.ui_auto_switch_layout = gui_cfg.get("auto_switch_layout", False)
+  self.ui_tier_layout_bindings = gui_cfg.get("tier_layout_bindings", {"Tier 1": "", "Tier 2": "", "Tier 3": "", "Tier 4": ""})
   from src import bg_shader
   bg_shader.get_bg().enabled = gui_cfg.get("bg_shader_enabled", False)