feat(hot-reload): Complete Phase 2 refactor and document UI delegation pattern

conductor/product-guidelines.md

@@ -25,6 +25,7 @@
 - **Comprehensive Logging:** Aggressively log all actions, API payloads, tool calls, and executed scripts. Maintain timestamped JSON-L and markdown logs to ensure total transparency and debuggability.
 - **Mandatory ImGui Verification:** All changes to the GUI (`gui_2.py`) MUST be verified using the custom AST linter (`scripts/check_imgui_scopes.py`) to ensure all ImGui scopes (begin/end, push/pop) are properly matched. Developers should prioritize the use of `src/imgui_scopes.py` context managers (`imscope`) over manual push/pop calls.
 - **Modular Controller Pattern:** To prevent "God Object" bloat in core controllers (like `AppController`), all state-independent or utility logic must be moved to module-level functions. Functions requiring class state should accept the instance as an explicit dependency (`def logic(controller: AppController, ...)`). Massive `if/elif` dispatch blocks must be refactored into handler maps (dictionaries) of module-level functions.
+- **UI Delegation for Hot-Reload:** All complex ImGui rendering logic must be extracted from the `App` class into module-level functions named `render_xxx(app: App)`. The `App` class should only contain thin delegation wrappers (`def _render_xxx(self): render_xxx(self)`). This architecture is mandatory for supporting state-preserving hot-reloads of the UI logic.
 - **Dependency Minimalism:** Limit external dependencies where possible. For instance, prefer standard library modules (like `urllib` and `html.parser` for web tools) over heavy third-party packages.
 
 ## Phase 5: Heavy Curation & Structural Integrity (MANDATORY)

conductor/product.md

@@ -19,6 +19,7 @@ For deep implementation details when planning or implementing tracks, consult `d
 - **Full Control over Vendor APIs:** Exposing detailed API metrics and configuring deep agent capabilities directly within the GUI.
 - **Context & Memory Management:** Better visualization and management of token usage and context memory. Features an independent **Context Composition** panel decoupled from the project whitelist, with directory-grouped listings and per-file **View Modes** (Full, Summary, Skeleton, Outline, None). Includes a **Visual Slice Editor** for creating fuzzy-anchored line ranges with **Annotations** (tags and comments), and **View Presets** for saving named configurations of view settings. Features a dedicated **'Context' role** for manual injections and **Context Presets** for saving and loading complete compositions. Allows assigning specific context presets to MMA agent personas for granular cognitive load isolation.
 - **Manual "Vibe Coding" Assistant:** Serving as an auxiliary, multi-provider assistant that natively interacts with the codebase via sandboxed PowerShell scripts and MCP-like file tools, emphasizing manual developer oversight and explicit confirmation.
+- **State-Preserving Hot Reload:** Supports selective, manual hot-reloading of Python modules (including the main GUI logic) via a delegation-based architecture. This allows for rapid UI iteration without losing application state or restarting the session.
 
 ## Key Features
 

conductor/tech-stack.md

@@ -83,6 +83,8 @@
 - **Hybrid Shader Pipeline:** Utilizes an optimized `ImDrawList`-based batching technique to simulate UI effects (shadows, soft borders) instead of complex GPU post-processing, eliminating the overhead of heavy GPU-resident shaders.
 - **Interface-Driven Development (IDD):** Enforces a "Stub-and-Resolve" pattern where cross-module dependencies are resolved by generating signatures/contracts before implementation.
 - **UI Concern Isolation:** Enforces a strict separation between the GUI layer (Tkinter/ImGui) and the business logic (AppController). All platform-native UI actions, such as file and directory selection, are handled exclusively within the GUI layer.
+- **UI Delegation Pattern:** Employs module-level rendering functions decoupled from the `App` class. This enables selective hot-reloading of UI logic by swapping function references at runtime while maintaining a stable state object (`app: App`).
+- **Manual Hot-Reload Pipeline:** Implements a `HotReloader` utility that manages module invalidation and state preservation, triggered by keyboard shortcuts (Ctrl+Alt+R) or GUI controls.
 
 ter/ImGui) and the business logic (AppController). All platform-native UI actions, such as file and directory selection, are handled exclusively within the GUI layer.
 

conductor/tracks.md

@@ -79,7 +79,7 @@ This file tracks all major tracks for the project. Each track has its own detail
 
 ---
 
-2. [ ] **Track: Hot Reload Python Codebase (Phase 2)**
+2. [x] **Track: Hot Reload Python Codebase (Phase 2)**
    *Link: [./tracks/hot_reload_python_20260516/](./tracks/hot_reload_python_20260516/)*
    *Goal: Implement selective, state-preserving hot-reload for src/gui_2.py with delegation pattern refactor, manual trigger via Ctrl+Alt+R and GUI button, and visual error tint feedback on failure.*