Claude init

CLAUDE.md

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+# CLAUDE.md
+
+This file provides guidance to Claude Code (claude.ai/code) when working with code in this repository.
+
+## Project Overview
+
+This is a Stable Diffusion WebUI extension that preserves UI parameters (inputs, sliders, checkboxes, etc.) after page reload. It uses localStorage for persistence and supports multiple SD extensions (ControlNet, ADetailer, Dynamic Prompting, Multidiffusion/Tiled VAE).
+
+## Development
+
+**No build system** - This is a pure extension with vanilla JavaScript and Python. Files are loaded directly by the parent Stable Diffusion WebUI.
+
+- Modify JavaScript/Python files directly
+- Reload the webui to test changes
+- Place extension in parent webui's `extensions/` directory
+
+## Architecture
+
+### Frontend (JavaScript)
+
+```
+state.app.js          → Entry point, calls state.core.init() on DOMContentLoaded
+state.core.js         → Main module: element mappings, initialization, UI buttons
+state.store.js        → LocalStorage wrapper with 'state-' prefix
+state.utils.js        → DOM manipulation, event handling, file operations
+state.constants.js    → Constants (LS_PREFIX)
+state.loggings.js     → Console logging utilities
+state.ext.*.js        → Extension-specific handlers (ControlNet, ADetailer, etc.)
+```
+
+**Key patterns:**
+- IIFE modules prevent global namespace pollution
+- All code lives under `window.state` namespace (`state.core`, `state.store`, `state.utils`, `state.extensions`)
+- Extension plugins register via `state.extensions[name] = { init: function() {} }`
+
+### Backend (Python)
+
+```
+scripts/state_api.py      → FastAPI endpoint: GET /state/config.json
+scripts/state_settings.py → Gradio settings UI (checkbox groups for element preservation)
+```
+
+### Data Flow
+
+1. `state.core.init()` fetches `/state/config.json` from Python backend
+2. Config specifies which elements to preserve per tab (txt2img, img2img)
+3. Event listeners attached to elements → changes saved to localStorage
+4. On page load, values restored from localStorage to elements
+
+### Element Categories in state.core.js
+
+- `INPUTS`: Text inputs, textareas, sliders (prompt, steps, seed, etc.)
+- `SELECTS`: Dropdowns (sampling, scheduler, upscaler, etc.)
+- `MULTI_SELECTS`: Multi-select dropdowns (styles)
+- `TOGGLE_BUTTONS`: Accordion toggles (hires_fix, refiner, tiled_diffusion)
+
+## Adding Support for New UI Elements
+
+1. Add element mapping in `state.core.js` (INPUTS, SELECTS, etc.)
+2. Implement or reuse handler function (`handleSavedInput`, `handleSavedSelects`, etc.)
+3. Add checkbox option in `state_settings.py`
+
+## Adding Support for New Extensions
+
+1. Create `javascript/state.ext.{name}.js`
+2. Implement IIFE module returning `{ init }` function
+3. Register in `state_settings.py` as checkbox option
+4. Reference `state.ext.control-net.js` for implementation pattern
+
+## Git Workflow
+
+- Feature branches from `develop`
+- PRs target `develop` branch
+- Main branch: `main`