Fix: replace non-existent apps with real templates, fix 500 errors on old doc paths

- AppShowcase: Removed 7 non-existent apps (Kaleidescape, Synology Photos, Homelabs, DockSTARTer, Unraid, TrueNAS, New Relic), added 50+ real app templates that exist in code
- Updated template count from 76+ to 92+ across all pages
- Fixed test count from 1400+ to 775+ (actual count)
- Added mod_rewrite fallback for old doc path redirects (fixes 500 errors)
- Added caching, compression, and proper error handling in .htaccess

src/app/docs/first-service/page.tsx

@@ -34,7 +34,7 @@ export default function DocsFirstServicePage() {
 
         <h2>Three ways to add a service</h2>
 
-        <h3>1. Pick from 76+ one-click templates</h3>
+        <h3>1. Pick from 92+ one-click templates</h3>
         <p>
           The template library covers the most popular self-hosted applications — media servers, dashboards,
           databases, note apps, automation tools, and more. Each template bundles sane defaults for ports,
@@ -62,7 +62,7 @@ export default function DocsFirstServicePage() {
         <h3>Step 1: Open the template library</h3>
         <p>
           From the dashboard sidebar, click <strong>New Service → From Template</strong>. The template library
-          opens with a searchable grid of 76+ applications.
+          opens with a searchable grid of 92+ applications.
         </p>
 
         <h3>Step 2: Find Plex</h3>

src/app/docs/integrations/page.tsx

@@ -27,7 +27,7 @@ export default function DocsIntegrationsPage() {
           Docker (and Docker Compose) is the runtime foundation for every deployment workflow, container lifecycle action,
           service discovery sweep, and template-based launch. DashCaddy communicates with the Docker daemon over the
           Unix socket (<code>/var/run/docker.sock</code>) to start, stop, restart, inspect, and adopt containers, and to
-          deploy the <strong>76+ one-click application templates</strong> from the catalog.
+          deploy the <strong>92+ one-click application templates</strong> from the catalog.
         </p>
         <p>
           The daemon connection is established at startup. If the socket is missing or permissioned for a different user,

src/app/docs/overview/page.tsx

@@ -162,7 +162,7 @@ export default function DocsOverviewPage() {
               <tr className="border-b border-surface-800">
                 <td className="py-3 pr-4">Docker deployment</td>
                 <td className="py-3 pr-4">Manual compose files</td>
-                <td className="py-3 pr-4">76+ one-click templates</td>
+                <td className="py-3 pr-4">92+ one-click templates</td>
                 <td className="py-3">Templates + Recipes</td>
               </tr>
               <tr className="border-b border-surface-800">

src/app/docs/premium/page.tsx

@@ -39,7 +39,7 @@ export default function DocsPremiumPage() {
           </thead>
           <tbody>
             <tr><td>Dashboard &amp; web UI</td><td>✓</td><td>✓</td></tr>
-            <tr><td>76+ application templates</td><td>✓</td><td>✓</td></tr>
+            <tr><td>92+ application templates</td><td>✓</td><td>✓</td></tr>
             <tr><td>Caddy reverse proxy + auto HTTPS</td><td>✓</td><td>✓</td></tr>
             <tr><td>Caddyfile-as-Code builder</td><td>✓</td><td>✓</td></tr>
             <tr><td>Technitium DNS automation</td><td>✓</td><td>✓</td></tr>