feat: initialize FlutterSDK AI skill registry and multi-tool distribution

AI coding skills (Wind UI, Magic Framework), MCP server skeleton,
command templates (OpenCode, Claude Code, Cursor, Gemini CLI, VS Code),
universal installer, Claude Code plugin manifest, and GitHub Pages
deployment workflow for fluttersdk.github.io/ai/

Author: anilcancakir

.claude-plugin/marketplace.json

@@ -0,0 +1,23 @@
+{
+    "$schema": "https://anthropic.com/claude-code/marketplace.schema.json",
+    "name": "fluttersdk-marketplace",
+    "version": "1.0.0",
+    "description": "FlutterSDK community AI skills for Flutter development — Wind UI styling, Magic Framework architecture, and more",
+    "owner": {
+        "name": "Anilcan Cakir",
+        "email": "anilcan.cakir@gmail.com"
+    },
+    "plugins": [
+        {
+            "name": "fluttersdk",
+            "description": "FlutterSDK AI skills — Wind UI utility-first styling and Magic Framework Laravel-inspired architecture for Flutter",
+            "source": "./",
+            "version": "1.0.0",
+            "author": {
+                "name": "Anilcan Cakir",
+                "email": "anilcan.cakir@gmail.com"
+            },
+            "category": "development"
+        }
+    ]
+}

.claude-plugin/plugin.json

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+{
+    "name": "fluttersdk",
+    "description": "FlutterSDK AI skills — Wind UI, Magic Framework, and more",
+    "version": "1.0.0",
+    "author": {
+        "name": "Anilcan Cakir",
+        "email": "anilcan.cakir@gmail.com"
+    },
+    "repository": "https://github.com/fluttersdk/ai",
+    "license": "MIT"
+}

.editorconfig

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+root = true
+
+[*]
+charset = utf-8
+end_of_line = lf
+insert_final_newline = true
+trim_trailing_whitespace = true
+indent_style = space
+indent_size = 4
+
+[*.md]
+trim_trailing_whitespace = false
+
+[*.yml]
+indent_size = 4
+
+[Makefile]
+indent_style = tab

.github/copilot-instructions.md

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+# FlutterSDK AI — VS Code Copilot Instructions
+
+You are working in a FlutterSDK ecosystem project. Follow these conventions:
+
+## Flutter / Dart
+- Use `W`-prefixed widgets from Wind UI (`WDiv`, `WText`, `WButton`) — never raw Flutter widgets when Wind equivalents exist
+- All styling via `className` string — never inline `BoxDecoration`, `TextStyle`, or `EdgeInsets`
+- Every `bg-`, `text-`, and `border-` class MUST have a `dark:` counterpart
+- Trailing commas on last constructor parameter and list item — always
+- Multi-line constructor parameters when 3 or more
+- `@immutable` + `const` constructors + `copyWith` pattern for value objects
+- Flutter-native state only: `InheritedWidget` + `ChangeNotifier` — no BLoC/Riverpod/Provider
+
+## Magic Framework
+- `await Magic.init()` in `main()` before any facade call
+- Facade-first: `Auth`, `Http`, `Config`, `Cache`, `DB`, `Log`, `Event`, `Lang`, `Route`, `Gate`
+- Singleton controllers: `static X get instance => Magic.findOrPut(X.new);`
+- Models declare `fillable` — never `guarded = []`
+- `MagicFormData` for form state management
+
+## General
+- English only for all code, naming, comments
+- 4 spaces indent, 120-char max line width, LF endings
+- Full type hints on every parameter and return type
+- DartDoc (`///`) on all public APIs

.github/workflows/deploy-registry.yml

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+name: Deploy Skills Registry
+
+on:
+    push:
+        branches: ["main"]
+        paths: ["skills/**"]
+
+permissions:
+    contents: read
+    pages: write
+    id-token: write
+
+concurrency:
+    group: "pages"
+    cancel-in-progress: false
+
+jobs:
+    deploy:
+        environment:
+            name: github-pages
+            url: ${{ steps.deployment.outputs.page_url }}
+        runs-on: ubuntu-latest
+        steps:
+            - name: Checkout
+              uses: actions/checkout@v4
+
+            - name: Setup Pages
+              uses: actions/configure-pages@v4
+
+            - name: Upload artifact
+              uses: actions/upload-pages-artifact@v3
+              with:
+                  path: "./skills"
+
+            - name: Deploy to GitHub Pages
+              id: deployment
+              uses: actions/deploy-pages@v4

.gitignore

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+# Dependencies
+node_modules/
+dist/
+
+# OS
+.DS_Store
+Thumbs.db
+
+# IDE
+.idea/
+.vscode/
+*.swp
+*.swo
+*~
+
+# Environment
+.env
+.env.local
+.env.*.local
+
+# Build artifacts
+*.tgz
+*.log
+
+# OpenCode source (if cloned for reference)
+opencode-source/