feat: post-render and Studio feedback collection via PostHog surveys (#1101)

* feat(cli): prompt for render satisfaction after successful renders

* feat: add text feedback, doctor context, and Studio render feedback UI

* feat(studio): replace render feedback with session-based Studio experience bar

Move the feedback prompt out of RenderQueueItem (where it triggered every
5th render) into a standalone StudioFeedbackBar mounted at the bottom of
the preview area. The new bar is session-gated (shows after the 5th studio
session), auto-dismisses after 20s, and respects a 30-day cooldown once
dismissed or submitted. Renames telemetry to trackStudioFeedback with a
"studio_experience" survey ID to reflect the broader scope.

* feat(studio): attach browser doctor summary to feedback events

* fix(studio): use recurring interval for feedback instead of one-time cooldown

* fix(cli): skip feedback prompt when an agent runtime is detected

* feat(cli): add hyperframes feedback command and agent render hint

- New `hyperframes feedback --rating <1-5> --comment "..."` command
  for submitting anonymous render satisfaction feedback via telemetry.
- When an AI agent runtime is detected after a render, print a dimmed
  hint to stdout so the agent can optionally call the command instead
  of silently skipping the readline prompt.
- Export getDoctorSummary from telemetry/feedback.ts to share the
  system-info collector between the interactive prompt and the CLI command.
- Register the command in cli.ts and help.ts under Settings.

* fix(studio): align feedback interval to every 15 sessions

* fix: show CLI feedback on first render, Studio every 10 sessions

* feat: add env flags to disable feedback prompts

* feat: env flags to configure feedback prompt frequency

* fix: address review — agent hint reachability, cadence gate, session debounce, deprecated API

packages/cli/src/commands/render.ts

@@ -45,6 +45,7 @@ import { c } from "../ui/colors.js";
 import { formatBytes, formatDuration, errorBox } from "../ui/format.js";
 import { renderProgress } from "../ui/progress.js";
 import { trackRenderComplete, trackRenderError } from "../telemetry/events.js";
+import { maybePromptRenderFeedback } from "../telemetry/feedback.js";
 import { bytesToMb } from "../telemetry/system.js";
 import { VERSION } from "../version.js";
 import { isDevMode } from "../utils/env.js";
@@ -827,6 +828,10 @@ export async function renderLocal(
   const elapsed = Date.now() - startTime;
   trackRenderMetrics(job, elapsed, options, false);
   printRenderComplete(outputPath, elapsed, options.quiet);
+  await maybePromptRenderFeedback({
+    renderDurationMs: elapsed,
+    quiet: options.quiet,
+  });
   if (options.exitAfterComplete) scheduleRenderProcessExit();
 }