perf: optimized markdown rendering speed and device doc schemas

- Render device doc parameter schemas as TypeScript types instead of raw JSON schema dumps.
- Optimize marked streaming block rules and add pre-gates to reduce CPU overhead.
- Increase the markdown render cache entry budget from 32 KiB to 256 KiB.

packages/coding-agent/src/utils/sample-profile.ts

@@ -97,7 +97,7 @@ export function parseSampleProfile(text: string): SampleProfile | null {
 	const lines = text.split("\n");
 	const analysis = ANALYSIS_RE.exec(lines[0] ?? "");
 	if (!analysis) return null;
-	const callGraphIx = lines.findIndex(line => line === "Call graph:");
+	const callGraphIx = lines.indexOf("Call graph:");
 	if (callGraphIx === -1) return null;
 
 	const header: SampleProfileHeader = {