feat: Add NFO configuration settings (Task 7)

- Added NFOConfig model with TMDB API key, auto-create, media downloads, image size settings
- Created NFO settings section in UI with form fields and validation
- Implemented nfo-config.js module for loading, saving, and testing TMDB connection
- Added TMDB API key validation endpoint (POST /api/config/tmdb/validate)
- Integrated NFO config into AppConfig and ConfigUpdate models
- Added 5 unit tests for NFO config model validation
- Added API test for TMDB validation endpoint
- All 16 config model tests passing, all 10 config API tests passing
- Documented in docs/task7_status.md (100% complete)

src/server/web/static/js/index/nfo-config.js

@@ -0,0 +1,169 @@
+/**
+ * AniWorld - NFO Config Module
+ *
+ * Handles NFO metadata configuration settings.
+ *
+ * Dependencies: constants.js, api-client.js, ui-utils.js
+ */
+
+var AniWorld = window.AniWorld || {};
+
+AniWorld.NFOConfig = (function() {
+    'use strict';
+
+    const API = AniWorld.Constants.API;
+
+    /**
+     * Load NFO configuration from server
+     */
+    async function load() {
+        try {
+            const config = await AniWorld.ApiClient.request(API.CONFIG);
+            
+            if (config && config.nfo) {
+                const nfo = config.nfo;
+                
+                // TMDB API Key
+                const tmdbKey = document.getElementById('tmdb-api-key');
+                if (tmdbKey && nfo.tmdb_api_key) {
+                    tmdbKey.value = nfo.tmdb_api_key;
+                }
+                
+                // Auto-create NFO
+                const autoCreate = document.getElementById('nfo-auto-create');
+                if (autoCreate) {
+                    autoCreate.checked = nfo.auto_create || false;
+                }
+                
+                // Update on scan
+                const updateOnScan = document.getElementById('nfo-update-on-scan');
+                if (updateOnScan) {
+                    updateOnScan.checked = nfo.update_on_scan || false;
+                }
+                
+                // Download options
+                const downloadPoster = document.getElementById('nfo-download-poster');
+                if (downloadPoster) {
+                    downloadPoster.checked = nfo.download_poster !== false;
+                }
+                
+                const downloadLogo = document.getElementById('nfo-download-logo');
+                if (downloadLogo) {
+                    downloadLogo.checked = nfo.download_logo !== false;
+                }
+                
+                const downloadFanart = document.getElementById('nfo-download-fanart');
+                if (downloadFanart) {
+                    downloadFanart.checked = nfo.download_fanart !== false;
+                }
+                
+                // Image size
+                const imageSize = document.getElementById('nfo-image-size');
+                if (imageSize && nfo.image_size) {
+                    imageSize.value = nfo.image_size;
+                }
+            }
+        } catch (error) {
+            console.error('Error loading NFO config:', error);
+            AniWorld.UI.showToast('Failed to load NFO configuration', 'error');
+        }
+    }
+
+    /**
+     * Save NFO configuration
+     */
+    async function save() {
+        try {
+            AniWorld.UI.showLoading('Saving NFO configuration...');
+            
+            // Get form values
+            const tmdbKey = document.getElementById('tmdb-api-key');
+            const autoCreate = document.getElementById('nfo-auto-create');
+            const updateOnScan = document.getElementById('nfo-update-on-scan');
+            const downloadPoster = document.getElementById('nfo-download-poster');
+            const downloadLogo = document.getElementById('nfo-download-logo');
+            const downloadFanart = document.getElementById('nfo-download-fanart');
+            const imageSize = document.getElementById('nfo-image-size');
+            
+            // Validate TMDB API key is provided if auto-create is enabled
+            if (autoCreate && autoCreate.checked && (!tmdbKey || !tmdbKey.value.trim())) {
+                AniWorld.UI.hideLoading();
+                AniWorld.UI.showToast('TMDB API key is required when auto-create is enabled', 'error');
+                return;
+            }
+            
+            const nfoConfig = {
+                tmdb_api_key: tmdbKey ? tmdbKey.value.trim() : null,
+                auto_create: autoCreate ? autoCreate.checked : false,
+                update_on_scan: updateOnScan ? updateOnScan.checked : false,
+                download_poster: downloadPoster ? downloadPoster.checked : true,
+                download_logo: downloadLogo ? downloadLogo.checked : true,
+                download_fanart: downloadFanart ? downloadFanart.checked : true,
+                image_size: imageSize ? imageSize.value : 'original'
+            };
+            
+            // Save configuration
+            const response = await AniWorld.ApiClient.request(
+                API.CONFIG,
+                {
+                    method: 'PUT',
+                    body: JSON.stringify({ nfo: nfoConfig })
+                }
+            );
+            
+            if (response) {
+                AniWorld.UI.showToast('NFO configuration saved successfully', 'success');
+            } else {
+                throw new Error('Failed to save configuration');
+            }
+        } catch (error) {
+            console.error('Error saving NFO config:', error);
+            AniWorld.UI.showToast('Failed to save NFO configuration: ' + error.message, 'error');
+        } finally {
+            AniWorld.UI.hideLoading();
+        }
+    }
+
+    /**
+     * Test TMDB API connection
+     */
+    async function testTMDBConnection() {
+        try {
+            const tmdbKey = document.getElementById('tmdb-api-key');
+            
+            if (!tmdbKey || !tmdbKey.value.trim()) {
+                AniWorld.UI.showToast('Please enter a TMDB API key first', 'warning');
+                return;
+            }
+            
+            AniWorld.UI.showLoading('Testing TMDB connection...');
+            
+            const response = await AniWorld.ApiClient.request(
+                '/api/config/tmdb/validate',
+                {
+                    method: 'POST',
+                    body: JSON.stringify({ api_key: tmdbKey.value.trim() })
+                }
+            );
+            
+            if (response && response.valid) {
+                AniWorld.UI.showToast('TMDB API key is valid!', 'success');
+            } else {
+                const message = response && response.message ? response.message : 'Invalid API key';
+                AniWorld.UI.showToast('TMDB validation failed: ' + message, 'error');
+            }
+        } catch (error) {
+            console.error('Error testing TMDB connection:', error);
+            AniWorld.UI.showToast('Failed to test TMDB connection: ' + error.message, 'error');
+        } finally {
+            AniWorld.UI.hideLoading();
+        }
+    }
+
+    // Public API
+    return {
+        load: load,
+        save: save,
+        testTMDBConnection: testTMDBConnection
+    };
+})();