Refactor character affiliations to singular form

- Updated character data structure to replace 'affiliations' and 'frAffiliations' with 'affiliation' and 'frAffiliation'.
- Modified related functions and components to accommodate the new structure.
- Adjusted database schema and server-side logic to reflect the changes in character affiliation handling.
- Ensured all references in the UI components and data import/export scripts are updated accordingly.

scripts/scrape-onepiece.ts

@@ -23,8 +23,8 @@ interface Character {
 	frOrigin: string | null;
 	devilFruitId: string | null;
 	devilFruitUrl: string | null;
-	affiliations: string[];
-	frAffiliations: string[] | null;
+	affiliation: string | null;
+	frAffiliation: string | null;
 	bounty: number | null;
 	hakiObservation: boolean;
 	hakiArmament: boolean;
@@ -370,7 +370,7 @@ async function fetchAllCharacters(arcsList: Arc[]): Promise<Character[]> {
 							Age: data.age,
 							Status: data.status,
 							Epithets: data.epithets.join(', '),
-							Affiliations: data.affiliations.join(', '),
+							Affiliation: data.affiliation,
 							DevilFruitId: data.devilFruitId,
 							DevilFruitUrl: data.devilFruitUrl,
 							HakiObservation: data.hakiObservation ? 'Yes' : 'No',
@@ -453,8 +453,8 @@ async function fetchCharacter(
 		// Extract age
 		const age = extractAge($);
 
-		// Extract affiliations
-		const affiliations = await extractAffiliations($, 'en');
+		// Extract affiliation
+		const affiliation = await extractAffiliations($, 'en');
 
 		// Extract epithets
 		const epithets = extractEpithets($);
@@ -513,7 +513,7 @@ async function fetchCharacter(
 
 		let frName = frjsonData?.parse?.title || null;
 
-		const frAffiliations = frjsonData
+		const frAffiliation = frjsonData
 			? await extractAffiliations(cheerio.load(frjsonData.parse?.text?.['*'] || ''), 'fr')
 			: null;
 
@@ -542,8 +542,8 @@ async function fetchCharacter(
 			frOrigin,
 			devilFruitId,
 			devilFruitUrl,
-			affiliations,
-			frAffiliations,
+			affiliation,
+			frAffiliation,
 			bounty,
 			hakiObservation,
 			hakiArmament,
@@ -591,15 +591,15 @@ function extractAge($: cheerio.CheerioAPI): number | null {
 /**
  * Extract affiliations from infobox
  */
-async function extractAffiliations($: cheerio.CheerioAPI, lang: string): Promise<string[]> {
+async function extractAffiliations($: cheerio.CheerioAPI, lang: string): Promise<string | null> {
 	const div = $('[data-source="affiliation"] .pi-data-value');
-	if (div.length === 0) return [];
+	if (div.length === 0) return null;
 
 	const cleanedDiv = div.clone();
 	cleanedDiv.find('sup').remove();
 
 	const text = cleanedDiv.html();
-	if (!text) return [];
+	if (!text) return null;
 
 	// Resolve affiliations from linked page titles.
 	const links = cleanedDiv.find('a').toArray();
@@ -624,14 +624,14 @@ async function extractAffiliations($: cheerio.CheerioAPI, lang: string): Promise
 
 		const uniqueLinks = Array.from(new Set(linkValues.filter(Boolean)));
 		if (uniqueLinks.length > 0) {
-			return uniqueLinks;
+			return uniqueLinks[0];
 		}
 	}
 
 	// Fallback to parsing text
 	const cleanText = text.replace(/<[^>]*>/g, '').trim();
 	const parts = cleanText.split(/\s*\n\s*|\s*;\s*|\s*,\s*/).filter(Boolean);
-	return parts.length > 0 ? parts : [];
+	return parts.length > 0 ? parts[0] : null;
 }
 
 /**
@@ -869,9 +869,8 @@ async function saveToCSV(characters: Character[]): Promise<void> {
 			status: c.status || '',
 			epithets: Array.isArray(c.epithets) ? c.epithets.join(', ') : c.epithets || '',
 			devilFruitId: c.devilFruitId || '',
-			affiliations: Array.isArray(c.affiliations)
-				? c.affiliations.join(', ')
-				: c.affiliations || '',
+			affiliation: c.affiliation || '',
+			frAffiliation: c.frAffiliation || '',
 			bounty: c.bounty ?? 0,
 			hakiObservation: c.hakiObservation ? 1 : 0,
 			hakiArmament: c.hakiArmament ? 1 : 0,