fix: explicit tag scanning with delete UI

- Remove auto-parsing on collapse
- Add "Scan for #tags" button that parses from current textarea content
- Always show tags section with delete buttons
- Show help text when no tags exist

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

src/lib/components/EntryCard.svelte

@@ -128,11 +128,9 @@
 		debouncedSave();
 	}
 
-	async function toggleExpand() {
+	function toggleExpand() {
 		if (expanded) {
-			// Collapsing - parse hashtags from content
-			await handleParseTags();
-			// Reset edit state to current entry values
+			// Collapsing - reset edit state to current entry values
 			editTitle = entry.title || '';
 			editContent = entry.content;
 			editType = entry.type;
@@ -210,9 +208,10 @@
 	}
 
 	async function handleParseTags() {
-		// Parse hashtags from content
+		// Parse hashtags from current content in textarea
 		const formData = new FormData();
 		formData.append('id', entry.id);
+		formData.append('content', editContent);
 
 		await fetch('?/parseTags', {
 			method: 'POST',
@@ -520,9 +519,18 @@
 				</div>
 
 				<!-- Tags section -->
-				{#if entry.tags?.length > 0}
-					<div>
-						<label class="block text-sm font-medium text-gray-700 mb-2">Tags</label>
+				<div>
+					<div class="flex items-center justify-between mb-2">
+						<label class="text-sm font-medium text-gray-700">Tags</label>
+						<button
+							type="button"
+							onclick={handleParseTags}
+							class="text-sm text-blue-600 hover:text-blue-700"
+						>
+							Scan for #tags
+						</button>
+					</div>
+					{#if entry.tags?.length > 0}
 						<div class="flex flex-wrap gap-2">
 							{#each entry.tags as tag}
 								<span class="inline-flex items-center gap-1 px-2 py-1 bg-blue-100 text-blue-700 rounded-full text-sm">
@@ -540,8 +548,10 @@
 								</span>
 							{/each}
 						</div>
-					</div>
-				{/if}
+					{:else}
+						<p class="text-sm text-gray-500">No tags. Use #hashtags in content and click "Scan for #tags".</p>
+					{/if}
+				</div>
 
 				<div class="flex items-center justify-between">
 					<div>

src/routes/+page.server.ts

@@ -296,6 +296,7 @@ export const actions: Actions = {
 	parseTags: async ({ request }) => {
 		const formData = await request.formData();
 		const id = formData.get('id')?.toString();
+		const content = formData.get('content')?.toString();
 
 		if (!id) {
 			return fail(400, { error: 'Entry ID is required' });
@@ -306,8 +307,9 @@ export const actions: Actions = {
 			return fail(404, { error: 'Entry not found' });
 		}
 
-		// Parse hashtags from current content and merge with existing tags
-		const newTags = parseHashtags(existing.content);
+		// Parse hashtags from provided content (or fall back to database content)
+		const textToParse = content ?? existing.content;
+		const newTags = parseHashtags(textToParse);
 		const existingTags = tagRepository.getByEntryId(id).map((t) => t.name.toLowerCase());
 		const allTags = [...new Set([...existingTags, ...newTags])];
 		tagRepository.updateEntryTags(id, allTags);