chore: initialiser le projet imagod-web (Rust)

- Structure du projet Cargo avec dépendances (clap, axum, reqwest, rusqlite, arboard, tray-icon)
- CLI avec sous-commandes start, serve, stop, status, config, install, uninstall, logs
- Module config: parsing TOML, chemins Windows/Linux
- Module dedup: dédoublonnage SHA-256 avec cache SQLite
- Module imago_client: client HTTP pour API Imago (upload, search, get)
- Module watcher: boucle de polling stub
- Module server: serveur web axum avec routes API REST stub
- Platform-specific: clipboard, tray, service, window_info (Windows)
- Frontend placeholder HTML
- Config par défaut (imagod.toml)
- README.md, LICENSE (MIT), .gitignore

LICENSE

@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2026 Bruno Charest
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.