Add PF2e attack effects, ability frequency, and perception details

Show inline on-hit effects on attack lines (e.g., "plus Grab"), frequency
limits on abilities (e.g., "(1/day)"), and perception details text alongside
senses. Strip redundant frequency lines from Foundry descriptions.

Also add resilient PF2e source fetching: batched requests with retry,
graceful handling of ad-blocker-blocked creature files (partial success
with toast warning and re-fetch prompt for missing creatures).

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

apps/web/src/components/__tests__/source-fetch-prompt.test.tsx

@@ -65,7 +65,7 @@ describe("SourceFetchPrompt", () => {
 	});
 
 	it("Load calls fetchAndCacheSource and onSourceLoaded on success", async () => {
-		mockFetchAndCacheSource.mockResolvedValueOnce(undefined);
+		mockFetchAndCacheSource.mockResolvedValueOnce({ skippedNames: [] });
 		const user = userEvent.setup();
 		const { onSourceLoaded } = renderPrompt();