Add full cross-platform path support

- Added automatic volume path translation in deployment (deploy.js)
- Updated FileBrowser template to use /opt/ instead of hard-coded E:/
- Migrated self-updater.js to use centralized platformPaths module
- Updated UI placeholders to use platform-neutral paths (/media/)
- All paths now automatically adapt to Windows or Linux at runtime via process.platform detection

dashcaddy-api/app-templates.js

@@ -672,8 +672,8 @@ const APP_TEMPLATES = {
       image: "filebrowser/filebrowser:latest",
       ports: ["{{PORT}}:80"],
       volumes: [
-        "E:/docker-progs/filebrowser/data:/srv",
+        "/opt/filebrowser/data:/srv",
-        "E:/docker-progs/filebrowser/database:/database"
+        "/opt/filebrowser/database:/database"
       ],
       environment: {}
     },

dashcaddy-api/routes/apps/deploy.js

@@ -106,13 +106,20 @@ module.exports = function(ctx, helpers) {
         throw new Error(`[DC-203] Port conflict detected: ${conflictDetails}. Please choose a different port.`);
       }
 
+      // Translate volume paths for cross-platform compatibility
+      const translatedVolumes = (processedTemplate.docker.volumes || []).map(volume => {
+        const [hostPath, ...rest] = volume.split(':');
+        const translatedHost = platformPaths.toDockerMountPath(hostPath);
+        return rest.length > 0 ? `${translatedHost}:${rest.join(':')}` : translatedHost;
+      });
+
       const containerConfig = {
         Image: processedTemplate.docker.image,
         name: containerName,
         ExposedPorts: {},
         HostConfig: {
           PortBindings: {},
-          Binds: processedTemplate.docker.volumes || [],
+          Binds: translatedVolumes,
           RestartPolicy: { Name: 'unless-stopped' },
           LogConfig: DOCKER.LOG_CONFIG
         },

dashcaddy-api/self-updater.js

@@ -16,18 +16,17 @@ const path = require('path');
 const crypto = require('crypto');
 const { execSync } = require('child_process');
 const zlib = require('zlib');
-
+const platformPaths = require('./platform-paths');
-const isWindows = process.platform === 'win32';
 
 const DEFAULTS = {
   CHECK_INTERVAL: 30 * 60 * 1000,  // 30 minutes
   UPDATE_URL: 'https://get.dashcaddy.net/release',
   MIRROR_URL: 'https://get2.dashcaddy.net/release',
-  UPDATES_DIR: isWindows ? 'C:/caddy/updates' : '/app/updates',
+  UPDATES_DIR: platformPaths.isWindows ? path.join(platformPaths.caddyBase, 'updates') : '/app/updates',
   // API_SOURCE_DIR is the HOST path — written to trigger.json for the host-side updater
-  API_SOURCE_DIR: isWindows ? 'C:/caddy/sites/dashcaddy-api' : '/etc/dashcaddy/sites/dashcaddy-api',
+  API_SOURCE_DIR: path.join(platformPaths.caddySites, 'dashcaddy-api'),
   // FRONTEND_DIR is the container path — dashboard is volume-mounted at /app/dashboard
-  FRONTEND_DIR: isWindows ? 'C:/caddy/sites/status' : '/app/dashboard',
+  FRONTEND_DIR: platformPaths.isWindows ? path.join(platformPaths.caddySites, 'status') : '/app/dashboard',
   MAX_BACKUPS: 3,
   HEALTH_TIMEOUT: 60000,
   DOWNLOAD_TIMEOUT: 120000,
@@ -44,7 +43,7 @@ class SelfUpdater extends EventEmitter {
       updatesDir: options.updatesDir || DEFAULTS.UPDATES_DIR,
       // hostUpdatesDir is the HOST path that maps to updatesDir inside the container.
       // Used when writing trigger.json so the host-side script can find staging files.
-      hostUpdatesDir: options.hostUpdatesDir || (isWindows ? options.updatesDir || DEFAULTS.UPDATES_DIR : '/opt/dashcaddy/updates'),
+      hostUpdatesDir: options.hostUpdatesDir || (platformPaths.isWindows ? options.updatesDir || DEFAULTS.UPDATES_DIR : '/opt/dashcaddy/updates'),
       apiSourceDir: options.apiSourceDir || DEFAULTS.API_SOURCE_DIR,
       frontendDir: options.frontendDir || DEFAULTS.FRONTEND_DIR,
       maxBackups: parseInt(options.maxBackups || DEFAULTS.MAX_BACKUPS, 10),

status/js/app-selector.js

@@ -104,7 +104,7 @@
 
             <!-- Path input with browse button -->
             <div class="flex-row-gap">
-              <input type="text" id="deploy-media-path" placeholder="E:/Movies, E:/TVShows"
+              <input type="text" id="deploy-media-path" placeholder="/media/Movies, /media/TVShows"
                      class="input-flex" style="font-size: 0.95rem;" />
               <button type="button" id="browse-media-btn" style="padding: 10px 16px; background: var(--accent); color: white; border: none; border-radius: 6px; cursor: pointer; font-weight: 500; white-space: nowrap;">
                 📂 Browse
@@ -465,7 +465,7 @@
     if (appTemplate.mediaMount) {
       mediaPathSection.style.display = 'block';
       mediaPathInput.value = '';
-      mediaPathInput.placeholder = 'E:/Movies, E:/TVShows or click Browse';
+      mediaPathInput.placeholder = '/media/Movies, /media/TVShows or click Browse';
 
       // Fetch detected mounts from existing media servers
       const detectedMountsContainer = document.getElementById('detected-mounts-container');