Refactor gui_2.py docstrings to use concise SSDL shape annotations

Remove verbose Threading & Safety sections and simplify DAG descriptions using composable shapes SSDL.

src/gui_2.py

@@ -989,15 +989,8 @@ class App:
   Reverts the application UI state to the previous snapshot in the history stack.
 
   State Mutations:
-    self.history (mutated to record index changes)
-    Modifies active UI variables via _apply_snapshot()
-
-  DAG Render Context:
-    Called by: _gui_func() (via hotkey Ctrl+Z) or undo button click.
-    Calls: _take_snapshot(), _apply_snapshot(), HistoryManager.undo()
-
-  Threading & Safety:
-    Must run synchronously on the Main Thread.
+  Reverts state via history stack.
+  Shape: `[I:snapshot] -> [B:history] => [I:state]`
   """
   sys.stderr.write(f"[DEBUG History] _handle_undo called. can_undo={self.history.can_undo}\n")
   sys.stderr.flush()
@@ -1845,18 +1838,8 @@ def render_usage_analytics_panel(app: App) -> None:
 
 def render_diagnostics_panel(app: App) -> None:
  """
-  Renders the Diagnostics panel, displaying performance telemetry metrics.
-  Shows frame time, FPS, event queue throughput, and memory usage.
-
-  State Mutations:
-    Updates app.perf_profiling_enabled and visibility in app.show_windows["Diagnostics"].
-
-  DAG Context / Render Flow:
-    Called by: render_main_interface()
-    Calls: app.perf_monitor.get_metrics()
-
-  Threading & Safety:
-    Must run synchronously on the Main Thread.
+  Renders the Diagnostics panel.
+  Shape: `[I] -> [B:perf_metrics] => [I:detailed_timings]`
   """
  if app.perf_profiling_enabled: app.perf_monitor.start_component("_render_diagnostics_panel")
  with imscope.window("Diagnostics", app.show_windows.get("Diagnostics", False)) as (exp, opened):
@@ -2354,21 +2337,9 @@ def render_path_field(label: str, attr: str, key: str, tooltip: str):
 
 def render_ai_settings_hub(app: App) -> None:
  """
- Groups and renders all AI-related configuration panels in a unified hub sidebar.
- Includes persona selection, LLM provider settings, system prompts, RAG switches, and tools.
-
- State Mutations:
-   None directly (delegated to child panels).
-
- DAG Context / Render Flow:
-   Called by: render_main_interface()
-   Calls: render_persona_selector_panel(), render_provider_panel(),
-          render_system_prompts_panel(), render_rag_panel(),
-          render_agent_tools_panel()
-
- Threading & Safety:
-   Must run synchronously on the Main Thread.
- """
+  Groups/renders all AI config panels (personas, models, prompts, RAG, tools).
+  Shape: `[I] -> [B:headers] => [I:sub-panels]`
+  """
  render_persona_selector_panel(app)
  if imgui.collapsing_header("Provider & Model"): render_provider_panel(app)
  if imgui.collapsing_header("System Prompts"):   render_system_prompts_panel(app)
@@ -2466,19 +2437,9 @@ def render_system_prompts_panel(app: App) -> None:
 
 def render_agent_tools_panel(app: App) -> None:
  """
- Renders active tool presets and configuration options.
- Allows selecting tool presets, toggling individual capability flags, and showing bias managers.
-
- State Mutations:
-   Modifies app.ui_active_tool_preset and local UI flags.
-
- DAG Context / Render Flow:
-   Called by: render_ai_settings_hub()
-   Calls: app._get_active_capabilities()
-
- Threading & Safety:
-   Must run synchronously on the Main Thread.
- """
+  Renders active tool presets and configuration options.
+  Shape: `[Q:caps] -> [B:tool_calling] => [S:preset]`
+  """
  caps = app._get_active_capabilities()
  if not caps.tool_calling:
   if imgui.collapsing_header("Active Tool Presets & Biases", imgui.TreeNodeFlags_.default_open):