Can now get channels!

- Inject LoggerInterface across WebhookController, TalkService, and ImageCleanup
- Replace TalkService.getAvailableTalkRooms() OCS API calls with direct database queries
- Add getBaseUrl() helper to resolve localhost/SSRF constraints for internal API calls
- Update buildRichObject() to generate public link shares for file attachments
- Add saveBotPassword, debug, and debugTables endpoints to WebhookController
- Separate frontend assets (JS/CSS) from adminSettings template
- Add composer.json and autoload files for PSR-4 autoloading
- Update Admin settings to use TemplateResponse and register app icons

composer/autoload.php

@@ -0,0 +1,22 @@
+<?php
+
+// Generated autoload file for ncdiscordhook
+// Provides PSR-4 autoloading for OCA\NCdiscordhook\
+
+$baseDir = dirname(__DIR__);
+
+spl_autoload_register(function ($class) use ($baseDir) {
+    // OCA\NCdiscordhook\ prefix
+    $prefix = 'OCA\\NCdiscordhook\\';
+    $prefixLen = strlen($prefix);
+    if (strncmp($class, $prefix, $prefixLen) !== 0) {
+        return;
+    }
+
+    $relativeClass = substr($class, $prefixLen);
+    $file = $baseDir . '/lib/' . str_replace('\\', '/', $relativeClass) . '.php';
+
+    if (file_exists($file)) {
+        require $file;
+    }
+});

composer/autoload_psr4.php

@@ -0,0 +1,10 @@
+<?php
+
+// autoload_psr4.php - generated manually for Nextcloud PSR-4 autoloading
+
+$vendorDir = '';
+$baseDir = dirname(__DIR__);
+
+return [
+    'OCA\\NCdiscordhook\\' => [$baseDir . '/lib'],
+];