fix(frontend): load full tag/category lists in pickers, honoring sort

The tag pickers, filter bar and batch editor loaded only /tags?limit=200 and
filtered client-side, so with more than 200 tags the rest were invisible and
unsearchable. Same for the category dropdowns on the tag forms.

Add fetchAllTags / fetchAllCategories helpers that page past the server's
per-request cap of 200, and order results by the sort the user chose on the
tags / categories page (tagSorting / categorySorting) instead of a hardcoded
name-asc. Wire them into FilterBar, TagPicker, TagRuleEditor, BulkTagEditor and
the tag new/edit category dropdowns.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

frontend/src/lib/components/file/BulkTagEditor.svelte

@@ -1,6 +1,7 @@
 <script lang="ts">
 	import { api } from '$lib/api/client';
-	import type { Tag, TagOffsetPage } from '$lib/api/types';
+	import type { Tag } from '$lib/api/types';
+	import { fetchAllTags } from '$lib/api/tags';
 
 	interface Props {
 		fileIds: string[];
@@ -30,13 +31,13 @@
 		error = '';
 		try {
 			const [tagsRes, commonRes] = await Promise.all([
-				api.get<TagOffsetPage>('/tags?limit=200&sort=name&order=asc'),
+				fetchAllTags(),
 				api.post<{ common_tag_ids: string[]; partial_tag_ids: string[] }>(
 					'/files/bulk/common-tags',
 					{ file_ids: fileIds }
 				)
 			]);
-			allTags = tagsRes.items ?? [];
+			allTags = tagsRes;
 			commonIds = new Set(commonRes.common_tag_ids ?? []);
 			partialIds = new Set(commonRes.partial_tag_ids ?? []);
 		} catch {

frontend/src/lib/components/file/FilterBar.svelte

@@ -1,6 +1,6 @@
 <script lang="ts">
-	import { api } from '$lib/api/client';
-	import type { Tag, TagOffsetPage } from '$lib/api/types';
+	import type { Tag } from '$lib/api/types';
+	import { fetchAllTags } from '$lib/api/tags';
 	import { buildDslFilter, parseDslFilter, tokenLabel } from '$lib/utils/dsl';
 
 	interface Props {
@@ -26,8 +26,8 @@
 	});
 
 	$effect(() => {
-		api.get<TagOffsetPage>('/tags?limit=200&sort=name&order=asc').then((page) => {
-			tags = page.items ?? [];
+		fetchAllTags().then((all) => {
+			tags = all;
 		});
 	});
 

frontend/src/lib/components/file/TagPicker.svelte

@@ -1,6 +1,6 @@
 <script lang="ts">
-	import { api } from '$lib/api/client';
-	import type { Tag, TagOffsetPage } from '$lib/api/types';
+	import type { Tag } from '$lib/api/types';
+	import { fetchAllTags } from '$lib/api/tags';
 
 	interface Props {
 		fileTags: Tag[];
@@ -15,8 +15,8 @@
 	let busy = $state(false);
 
 	$effect(() => {
-		api.get<TagOffsetPage>('/tags?limit=200&sort=name&order=asc').then((p) => {
-			allTags = p.items ?? [];
+		fetchAllTags().then((all) => {
+			allTags = all;
 		});
 	});