Stage 17 (#3,#5,#10): hover-hold drag zoom, always-editable profile, drag-back + double-tap recall

- Board drag now auto-zooms toward a cell after holding the tile over it ~1s (#3).
- Profile is inline-editable: drop the Edit/Cancel toggle, form is always shown
  for durable accounts; hint balance stays read-only; re-populate after link/merge (#5).
- A pending tile recalls by double-tap (same cell) or by dragging it back onto the
  rack (unzoomed board); a single tap no longer recalls (#10).
- e2e: lock double-tap recall + single-tap no-op; drop the removed Edit-profile click.

ui/e2e/game.spec.ts

@@ -29,6 +29,25 @@ test('placing a tile and confirming via ✅ commits the move', async ({ page })
   await expect(page.locator('.make')).toBeHidden();
 });
 
+test('a pending tile recalls on double-tap, not on a single tap', async ({ page }) => {
+  await openGame(page);
+  await page.locator('.rack .tile').first().click();
+  await page.locator('[data-cell]:not(.filled)').nth(30).click();
+  await expect(page.locator('[data-cell].pending')).toHaveCount(1);
+
+  // A single tap must NOT recall it (changed in Stage 17 — recall was too easy to trigger).
+  await page.waitForTimeout(350); // clear the double-tap window from the placing tap
+  await page.locator('[data-cell].pending').first().click();
+  await expect(page.locator('[data-cell].pending')).toHaveCount(1);
+
+  // A double-tap (two synchronous clicks on the same cell) recalls it to the rack.
+  await page.locator('[data-cell].pending').first().evaluate((el: HTMLElement) => {
+    el.click();
+    el.click();
+  });
+  await expect(page.locator('[data-cell].pending')).toHaveCount(0);
+});
+
 test('history slides the board down and closes on a board tap', async ({ page }) => {
   await openGame(page);
   await page.locator('.burger').click();

ui/e2e/social.spec.ts

@@ -54,7 +54,6 @@ test('profile edit saves a new display name', async ({ page }) => {
   await loginLobby(page);
   await page.locator('.burger').first().click();
   await page.getByRole('button', { name: /Profile/ }).click();
-  await page.getByRole('button', { name: /Edit profile/ }).click();
   await page.locator('.edit input').first().fill('Kaya Test');
   await page.getByRole('button', { name: /^Save$/ }).click();
   await expect(page.locator('.name')).toHaveText('Kaya Test');
@@ -127,7 +126,6 @@ test('profile edit disables Save and flags an invalid display name', async ({ pa
   await loginLobby(page);
   await page.locator('.burger').first().click();
   await page.getByRole('button', { name: /Profile/ }).click();
-  await page.getByRole('button', { name: /Edit profile/ }).click();
 
   const name = page.locator('.edit input').first();
   const save = page.getByRole('button', { name: /^Save$/ });