Add filter input to source manager for searching cached sources by name

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

apps/web/src/components/source-manager.tsx

@@ -1,8 +1,15 @@
-import { Database, Trash2 } from "lucide-react";
-import { useCallback, useEffect, useOptimistic, useState } from "react";
+import { Database, Search, Trash2 } from "lucide-react";
+import {
+	useCallback,
+	useEffect,
+	useMemo,
+	useOptimistic,
+	useState,
+} from "react";
 import type { CachedSourceInfo } from "../adapters/bestiary-cache.js";
 import * as bestiaryCache from "../adapters/bestiary-cache.js";
 import { Button } from "./ui/button.js";
+import { Input } from "./ui/input.js";
 
 interface SourceManagerProps {
 	onCacheCleared: () => void;
@@ -12,6 +19,7 @@ export function SourceManager({
 	onCacheCleared,
 }: Readonly<SourceManagerProps>) {
 	const [sources, setSources] = useState<CachedSourceInfo[]>([]);
+	const [filter, setFilter] = useState("");
 	const [optimisticSources, applyOptimistic] = useOptimistic(
 		sources,
 		(
@@ -46,6 +54,15 @@ export function SourceManager({
 		onCacheCleared();
 	};
 
+	const filteredSources = useMemo(() => {
+		const term = filter.toLowerCase();
+		return term
+			? optimisticSources.filter((s) =>
+					s.displayName.toLowerCase().includes(term),
+				)
+			: optimisticSources;
+	}, [optimisticSources, filter]);
+
 	if (optimisticSources.length === 0) {
 		return (
 			<div className="flex flex-col items-center gap-2 py-8 text-center">
@@ -70,8 +87,17 @@ export function SourceManager({
 					Clear All
 				</Button>
 			</div>
+			<div className="relative">
+				<Search className="pointer-events-none absolute top-1/2 left-3 h-3.5 w-3.5 -translate-y-1/2 text-muted-foreground" />
+				<Input
+					placeholder="Filter sources…"
+					value={filter}
+					onChange={(e) => setFilter(e.target.value)}
+					className="pl-8"
+				/>
+			</div>
 			<ul className="flex flex-col gap-1">
-				{optimisticSources.map((source) => (
+				{filteredSources.map((source) => (
 					<li
 						key={source.sourceCode}
 						className="flex items-center justify-between rounded-md border border-border px-3 py-2"

specs/004-bestiary/spec.md

@@ -148,7 +148,7 @@ While the bulk import is in progress, the user sees a text counter ("Loading sou
 If the user closes the side panel while a bulk import is still in progress, a persistent toast notification appears at the bottom-center of the screen showing the same progress text and progress bar.
 
 **US-M6 — Manage Cached Sources (P4)**
-A DM wants to see which sources are cached, clear a specific source's cache, or clear all cached data. A management UI provides this visibility and control.
+A DM wants to see which sources are cached, find a specific source, clear a specific source's cache, or clear all cached data. A management UI provides this visibility and control, including a filter input to quickly locate sources by name when many are cached.
 
 ### Requirements
 
@@ -174,7 +174,7 @@ A DM wants to see which sources are cached, clear a specific source's cache, or
 - **FR-044**: The bulk import MUST run asynchronously and not block the rest of the app.
 - **FR-045**: The user MUST explicitly provide/confirm the URL before any fetches occur — the app never auto-fetches content.
 - **FR-046**: The "Load All" button MUST be disabled when the URL field is empty or while a bulk import is already in progress.
-- **FR-047**: The app MUST provide a management UI showing cached sources with options to clear individual sources or all cached data.
+- **FR-047**: The app MUST provide a management UI showing cached sources with a filter input for searching by display name and options to clear individual sources or all cached data.
 - **FR-048**: The normalization adapter and tag-stripping utility MUST remain the canonical pipeline for all fetched and uploaded data.
 - **FR-049**: The distributed app bundle MUST contain zero copyrighted prose content — only mechanical facts and creature names in the search index.
 
@@ -198,6 +198,7 @@ A DM wants to see which sources are cached, clear a specific source's cache, or
 16. **Given** two sources have been cached, **When** the DM opens the source management UI, **Then** both sources are listed with their display names.
 17. **Given** the source management UI is open, **When** the DM clears a single source, **Then** that source's data is removed; stat blocks for its creatures require re-fetching, while other cached sources remain.
 18. **Given** the source management UI is open, **When** the DM clears all cached data, **Then** all source data is removed and all stat blocks require re-fetching.
+19. **Given** many sources are cached, **When** the DM types a partial name in the filter input, **Then** only sources whose display name matches (case-insensitive) are shown.
 
 ### Edge Cases