chore: drop obsolete scripts and a stale dev dependency, make knip report clean

- Nine one-off scripts from January and February that nothing references:
  three Ralph wizard drivers that click the start-screen button removed in
  1.50 (against the production port, with a personal case name), a respawn
  monitor with a hardcoded session id, link-detection experiments for
  patterns that no longer exist, and two screenshot and data helpers.
- @types/uuid: uuid 14 ships its own types and TypeScript already
  resolves them from the package.
- config/knip.json now describes the workspace layout it runs in (its
  top-level entry and project keys were being ignored), names the manual
  scripts as entries, lists the system binaries tests shell out to, and
  honours @knipignore. `npm run knip` reports nothing; CLAUDE.md says so.
- Two more unused tap helpers in the mobile test toolkit.
- Docs that pointed at files which no longer exist: the browser testing
  guide (four deleted test files), the orchestrator panel's file name, two
  spawn modules in the Ralph guide, the respawn mock utilities.

Co-Authored-By: Claude Fable 5.2 <noreply@anthropic.com>

test/mobile/helpers/touch-sim.ts

@@ -202,44 +202,3 @@ export async function swipe(
   await swipeViaSynthetic(page, direction, swipeOpts);
 }
 
-/** Tap an element via CDP (trusted touch) */
-export async function tapViaCDP(page: Page, selector: string): Promise<void> {
-  const cdp = await getCDP(page);
-  const box = await page.locator(selector).boundingBox();
-  if (!box) throw new Error(`Element ${selector} not found for tap`);
-
-  const x = box.x + box.width / 2;
-  const y = box.y + box.height / 2;
-
-  await dispatchTouchEvent(cdp, 'touchStart', [{ x, y }]);
-  await page.waitForTimeout(50);
-  await dispatchTouchEvent(cdp, 'touchEnd', []);
-}
-
-/** Tap an element via synthetic touch (cross-engine) */
-export async function tapViaSynthetic(page: Page, selector: string): Promise<void> {
-  await page.evaluate((sel) => {
-    const el = document.querySelector(sel);
-    if (!el) return;
-    const rect = el.getBoundingClientRect();
-    const x = rect.left + rect.width / 2;
-    const y = rect.top + rect.height / 2;
-    const touch = new Touch({
-      identifier: 0,
-      target: el,
-      clientX: x,
-      clientY: y,
-    });
-    el.dispatchEvent(new TouchEvent('touchstart', {
-      touches: [touch],
-      changedTouches: [touch],
-      bubbles: true,
-    }));
-    el.dispatchEvent(new TouchEvent('touchend', {
-      touches: [],
-      changedTouches: [touch],
-      bubbles: true,
-    }));
-  }, selector);
-}
-