docs: modernize README + CI for Node 24 / Vite / Capacitor (F.3)

- Remove obsolete Dockerfile + .dockerignore (Node 12 / mDNS / Spectron).
- CI (main.yml, dist.yml): Node 24, npm ci, drop submodules/mDNS/python/npm-pin;
  run vitest (test:ci) and electron-vite build.
- README: rewrite requirements, scripts, desktop/mobile dev, and structure for
  the new toolchain; drop Cordova/webpack/Jest/mDNS sections.

Author: jthrilly

.dockerignore

@@ -11,36 +11,16 @@ jobs:
   dist:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
-        with:
-          submodules: recursive
-      # Set python version to 2.x due to node-gyp and sass
-      - uses: actions/setup-python@v4
-        with:
-          python-version: "3.10.12"
-      # Set node version
+      - uses: actions/checkout@v4
       - uses: actions/setup-node@v4
         with:
-          node-version: "14.21.3"
-      - name: Set NPM 7
-        run: npm install -g npm@8.19.4
-      # Cache node_modules
-      - uses: actions/cache@v4
-        env:
-          cache-name: cache-node-modules
-        with:
-          path: "**/node_modules"
-          key: ${{ runner.os }}-modules-${{ hashFiles('**/package-lock.json') }}
-
-      - name: Install MDNS build dependencies
-        run: |
-          sudo apt-get update
-          sudo apt-get install libavahi-compat-libdnssd-dev
+          node-version: "24"
+          cache: npm
 
-      - name: Install node modules
-        run: npm install
+      - name: Install dependencies
+        run: npm ci
 
-      - name: Dist
+      - name: Dist (Linux)
         run: npm run dist:linux -- --publish always
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

.github/workflows/dist.yml

@@ -11,73 +11,33 @@ jobs:
   test:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
-        with:
-          submodules: recursive
-      # Set python version to 2.x due to node-gyp and sass
-      - uses: actions/setup-python@v4
-        with:
-          python-version: "3.10.12"
-      # Set node version
+      - uses: actions/checkout@v4
       - uses: actions/setup-node@v4
         with:
-          node-version: "14.21.3"
-      - name: Set NPM 7
-        run: npm install -g npm@8.19.4
-      # Cache node_modules
-      - uses: actions/cache@v4
-        env:
-          cache-name: cache-node-modules
-        with:
-          path: "**/node_modules"
-          key: ${{ runner.os }}-modules-${{ hashFiles('**/package-lock.json') }}
-
-      - name: Install MDNS build dependencies
-        run: |
-          sudo apt-get update
-          sudo apt-get install libavahi-compat-libdnssd-dev
+          node-version: "24"
+          cache: npm
 
-      - name: Install node modules
-        run: npm install
+      - name: Install dependencies
+        run: npm ci
 
       - name: Lint
         run: npm run lint -- --max-warnings 0 && npm run sass-lint -- --max-warnings 0
 
-      - name: Run tests
-        run: npm run test
+      - name: Test
+        run: npm run test:ci
 
   build:
     needs: test
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
-        with:
-          submodules: recursive
-      # Set python version to 2.x due to node-gyp and sass
-      - uses: actions/setup-python@v4
-        with:
-          python-version: "3.10.12"
-      # Set node version
+      - uses: actions/checkout@v4
       - uses: actions/setup-node@v4
         with:
-          node-version: "14.21.3"
-      - name: Set NPM 7
-        run: npm install -g npm@8.19.4
-      # Cache node_modules
-      - uses: actions/cache@v4
-        env:
-          cache-name: cache-node-modules
-        with:
-          path: "**/node_modules"
-          key: ${{ runner.os }}-modules-${{ hashFiles('**/package-lock.json') }}
-
-      - name: Install MDNS build dependencies
-        run: |
-          sudo apt-get update
-          sudo apt-get install libavahi-compat-libdnssd-dev
+          node-version: "24"
+          cache: npm
 
-      - name: Install node modules
-        run: npm install
+      - name: Install dependencies
+        run: npm ci
 
-      - name: Build
-        run: npm run build:electron
+      - name: Build (Vite + Electron)
+        run: npm run build