feat: catalogue enrichment — tagline, genres, warnings, quality score, batch covers

Backend (handlers_catalogue.go):
- POST /api/admin/text-gen/tagline — 1-sentence marketing hook
- POST /api/admin/text-gen/genres + /apply — LLM genre suggestions, editable + persist
- POST /api/admin/text-gen/content-warnings — mature theme detection
- POST /api/admin/text-gen/quality-score — 1–5 description quality rating
- POST /api/admin/catalogue/batch-covers (SSE) — generate covers for books missing one
- POST /api/admin/catalogue/batch-covers/cancel — cancel via in-memory job registry
- POST /api/admin/catalogue/refresh-metadata/{slug} (SSE) — description + cover refresh

Frontend:
- text-gen: 4 new tabs (Tagline, Genres, Warnings, Quality) with book autocomplete
- image-gen: localStorage style presets (save/apply/delete named prompt templates)
- catalogue-tools: new admin page with batch cover SSE progress + cancel
- admin nav: "Catalogue Tools" link added

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

ui/src/lib/paraglide/messages.js

@@ -1,2 +1,4 @@
 /* eslint-disable */
-export * from './messages/_index.js'
+export * from './messages/_index.js'
+// enabling auto-import by exposing all messages as m
+export * as m from './messages/_index.js'

ui/src/lib/paraglide/messages/_index.js

@@ -373,6 +373,7 @@ export * from './admin_nav_translation.js'
 export * from './admin_nav_changelog.js'
 export * from './admin_nav_image_gen.js'
 export * from './admin_nav_text_gen.js'
+export * from './admin_nav_catalogue_tools.js'
 export * from './admin_nav_feedback.js'
 export * from './admin_nav_errors.js'
 export * from './admin_nav_analytics.js'

ui/src/lib/paraglide/messages/admin_nav_catalogue_tools.js

@@ -0,0 +1,44 @@
+/* eslint-disable */
+import { getLocale, experimentalStaticLocale } from '../runtime.js';
+
+/** @typedef {import('../runtime.js').LocalizedString} LocalizedString */
+
+/** @typedef {{}} Admin_Nav_Catalogue_ToolsInputs */
+
+const en_admin_nav_catalogue_tools = /** @type {(inputs: Admin_Nav_Catalogue_ToolsInputs) => LocalizedString} */ () => {
+	return /** @type {LocalizedString} */ (`Catalogue Tools`)
+};
+
+const ru_admin_nav_catalogue_tools = /** @type {(inputs: Admin_Nav_Catalogue_ToolsInputs) => LocalizedString} */ () => {
+	return /** @type {LocalizedString} */ (`Catalogue Tools`)
+};
+
+const id_admin_nav_catalogue_tools = /** @type {(inputs: Admin_Nav_Catalogue_ToolsInputs) => LocalizedString} */ () => {
+	return /** @type {LocalizedString} */ (`Catalogue Tools`)
+};
+
+const pt_admin_nav_catalogue_tools = /** @type {(inputs: Admin_Nav_Catalogue_ToolsInputs) => LocalizedString} */ () => {
+	return /** @type {LocalizedString} */ (`Catalogue Tools`)
+};
+
+const fr_admin_nav_catalogue_tools = /** @type {(inputs: Admin_Nav_Catalogue_ToolsInputs) => LocalizedString} */ () => {
+	return /** @type {LocalizedString} */ (`Catalogue Tools`)
+};
+
+/**
+* | output |
+* | --- |
+* | "Catalogue Tools" |
+*
+* @param {Admin_Nav_Catalogue_ToolsInputs} inputs
+* @param {{ locale?: "en" | "ru" | "id" | "pt" | "fr" }} options
+* @returns {LocalizedString}
+*/
+export const admin_nav_catalogue_tools = /** @type {((inputs?: Admin_Nav_Catalogue_ToolsInputs, options?: { locale?: "en" | "ru" | "id" | "pt" | "fr" }) => LocalizedString) & import('../runtime.js').MessageMetadata<Admin_Nav_Catalogue_ToolsInputs, { locale?: "en" | "ru" | "id" | "pt" | "fr" }, {}>} */ ((inputs = {}, options = {}) => {
+	const locale = experimentalStaticLocale ?? options.locale ?? getLocale()
+	if (locale === "en") return en_admin_nav_catalogue_tools(inputs)
+	if (locale === "ru") return ru_admin_nav_catalogue_tools(inputs)
+	if (locale === "id") return id_admin_nav_catalogue_tools(inputs)
+	if (locale === "pt") return pt_admin_nav_catalogue_tools(inputs)
+	return fr_admin_nav_catalogue_tools(inputs)
+});

ui/src/lib/paraglide/messages/admin_nav_feedback.js

@@ -9,21 +9,17 @@ const en_admin_nav_feedback = /** @type {(inputs: Admin_Nav_FeedbackInputs) => L
 	return /** @type {LocalizedString} */ (`Feedback`)
 };
 
-const ru_admin_nav_feedback = /** @type {(inputs: Admin_Nav_FeedbackInputs) => LocalizedString} */ () => {
-	return /** @type {LocalizedString} */ (`Отзывы`)
-};
+/** @type {(inputs: Admin_Nav_FeedbackInputs) => LocalizedString} */
+const ru_admin_nav_feedback = en_admin_nav_feedback;
 
-const id_admin_nav_feedback = /** @type {(inputs: Admin_Nav_FeedbackInputs) => LocalizedString} */ () => {
-	return /** @type {LocalizedString} */ (`Masukan`)
-};
+/** @type {(inputs: Admin_Nav_FeedbackInputs) => LocalizedString} */
+const id_admin_nav_feedback = en_admin_nav_feedback;
 
-const pt_admin_nav_feedback = /** @type {(inputs: Admin_Nav_FeedbackInputs) => LocalizedString} */ () => {
-	return /** @type {LocalizedString} */ (`Feedback`)
-};
+/** @type {(inputs: Admin_Nav_FeedbackInputs) => LocalizedString} */
+const pt_admin_nav_feedback = en_admin_nav_feedback;
 
-const fr_admin_nav_feedback = /** @type {(inputs: Admin_Nav_FeedbackInputs) => LocalizedString} */ () => {
-	return /** @type {LocalizedString} */ (`Retours`)
-};
+/** @type {(inputs: Admin_Nav_FeedbackInputs) => LocalizedString} */
+const fr_admin_nav_feedback = en_admin_nav_feedback;
 
 /**
 * | output |