docs: update build pattern conversion plan with consistent naming and mode handling

- Change build:* naming from hyphen to colon (build:web-dev → build:web:dev)
- Add missing build:web:test and build:web:prod scripts
- Update build:electron:dev to include electron startup (build + start)
- Remove hardcoded --mode electron to allow proper mode override
- Add comprehensive mode override behavior documentation
- Fix mode conflicts between hardcoded and passed --mode arguments

The plan now properly supports:
- Development builds with default --mode development
- Testing builds with explicit --mode test override
- Production builds with explicit --mode production override
- Consistent naming across all platforms (web, capacitor, electron)

package.json

@@ -9,6 +9,8 @@
     "dev": "vite --config vite.config.dev.mts --host",
     "serve": "vite preview",
     "build": "VITE_GIT_HASH=`git log -1 --pretty=format:%h` vite build --config vite.config.mts",
+    "build:optimized": "VITE_GIT_HASH=`git log -1 --pretty=format:%h` vite build --config vite.config.optimized.mts",
+    "dev:optimized": "vite --config vite.config.optimized.mts --host",
     "lint": "eslint --ext .js,.ts,.vue --ignore-path .gitignore src",
     "lint-fix": "eslint --ext .js,.ts,.vue --ignore-path .gitignore --fix src",
     "prebuild": "eslint --ext .js,.ts,.vue --ignore-path .gitignore src && node sw_combine.js && node scripts/copy-wasm.js",