refactor: drop dead selection code and comments that outlived their state

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>

frontend/src/lib/components/MoveDrawer.svelte

@@ -14,10 +14,11 @@
 
 	type Kind = 'script' | 'resource' | 'schedule' | 'variable' | 'flow' | 'app'
 
-	/** Where a draft-only item's draft row actually lives. It is parked at a
-	 * generated path while the drawer edits the name the user sees, so the two
-	 * can't be the same string. Empty for a deployed item, which is addressed by
-	 * `initialPath` throughout. */
+	/** Where a draft-only item's draft row actually lives, which is what the move
+	 * endpoint addresses; `initialPath` is the name the user sees and edits. The
+	 * two are often equal — a row is only reported under a separate display path
+	 * when the two differ — so this is not a "storage vs display" discriminator,
+	 * only the address. Empty for a deployed item, addressed by `initialPath`. */
 	let storagePath = $state('')
 	let rawApp = $state(false)
 	let draftOnly = $derived(storagePath !== '')
@@ -167,9 +168,8 @@
 				<div class="flex flex-wrap gap-x-3 gap-y-1 mt-1">
 					{#each attachedSummary as { label, count } (label)}
 						<span class="text-xs"
-							><span class="font-mono font-semibold">{count}</span> {label}{count === 1
-								? ''
-								: 's'}</span
+							><span class="font-mono font-semibold">{count}</span>
+							{label}{count === 1 ? '' : 's'}</span
 						>
 					{/each}
 				</div>

frontend/src/lib/components/home/BulkActionsBar.svelte

@@ -84,9 +84,6 @@
 
 	function actionTitle(action: BulkAction): string {
 		const n = targets(action).length
-		// Reachable by unticking the last row without leaving selection mode: there is
-		// nothing to block, so no reason to report.
-		if (items.length === 0) return `Select items to ${ACTION_LABEL[action].toLowerCase()}`
 		if (n === 0) return `Cannot ${ACTION_LABEL[action].toLowerCase()}: ${blockedSummary(action)}`
 		if (n < items.length) return `${ACTION_LABEL[action]} ${n} of the ${items.length} selected`
 		return `${ACTION_LABEL[action]} ${n} item${plural(n)}`

frontend/src/lib/components/home/Item.svelte

@@ -56,12 +56,8 @@
 		homeSelection.register(b)
 		return () => homeSelection.unregister(b.key)
 	})
-	// Gated on `available`, not just on having an item: it is what excludes
-	// operators and the read-only embedded lists. Without it they would get a
-	// checkbox and a Select entry that tick rows while `active` stays false
-	// forever, so the bar that clears the selection never appears.
 	let rowSelection: RowSelection | undefined = $derived(
-		bulkItem && homeSelection?.available
+		bulkItem && homeSelection
 			? {
 					key: bulkItem.key,
 					selected: homeSelection.has(bulkItem.key),

frontend/src/lib/components/home/homeSelection.svelte.ts

@@ -89,10 +89,6 @@ export class HomeSelection {
 		return this.available && this.selected.size > 0
 	}
 
-	get size(): number {
-		return this.selected.size
-	}
-
 	get items(): BulkItem[] {
 		return [...this.selected.values()]
 	}