fix(tests): avoid Latest mode in forward navigation tests

Forward navigation tests were failing because navigating from position
21-40 back to position 1-20 triggered Latest mode (timestamp: null).
Latest mode fetches data for NOW (Jan 2026), but test data ends in
Nov 2025, resulting in 0 records and test timeouts.

Fix: navigate backward 2 steps then forward 1, avoiding Latest mode
while still testing the forward navigation functionality.

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

Author: ryan-williams

www/test/e2e/network-requests.spec.ts

@@ -300,18 +300,20 @@ test.describe('Network Request Behavior', () => {
     })
 
     test('table page forward (.) after backward does not fetch', async ({ page }) => {
-      // Go back by table page
+      // Go back by TWO table pages (avoid triggering Latest mode on forward)
+      await page.keyboard.press(',')
+      await waitForNetworkSettle(page)
       await page.keyboard.press(',')
       await waitForNetworkSettle(page)
 
       clearRequests()
 
-      // Go forward by table page
+      // Go forward by table page (returns to previous position, not Latest)
       await page.keyboard.press('.')
       await waitForNetworkSettle(page)
 
       const gymRequests = getRequests(17617)
-      // Should have NO fetches
+      // Should have NO fetches (data was cached from initial + backward navigation)
       expect(gymRequests).toHaveLength(0)
     })
   })

www/test/e2e/table-pagination.spec.ts

@@ -131,21 +131,23 @@ test.describe('Table Pagination Navigation', () => {
     expect(tableText).toBe('21-40 of 254,859 × 1m')
   })
 
-  test('> button pans forward by one page (21-40 → 1-20)', async ({ page }) => {
-    // First go back one page to 21-40
+  test('> button pans forward by one page (41-60 → 21-40)', async ({ page }) => {
+    // Go back TWO pages to 41-60 (avoid triggering Latest mode on forward)
+    await page.locator('.pagination button[aria-label="Pan backward by one table page"]').click()
+    await page.waitForTimeout(500)
     await page.locator('.pagination button[aria-label="Pan backward by one table page"]').click()
     await page.waitForTimeout(500)
 
     let tableText = await page.locator('.pagination .page-info').textContent()
-    expect(tableText).toBe('21-40 of 254,859 × 1m')
+    expect(tableText).toBe('41-60 of 254,859 × 1m')
 
     // Click > button (pan forward by one table page)
     await page.locator('.pagination button[aria-label="Pan forward by one table page"]').click()
     await page.waitForTimeout(500)
 
-    // Should return to 1-20 (Latest mode)
+    // Should move forward to 21-40 (not Latest mode, since we started further back)
     tableText = await page.locator('.pagination .page-info').textContent()
-    expect(tableText).toBe('1-20 of 254,859 × 1m')
+    expect(tableText).toBe('21-40 of 254,859 × 1m')
   })
 
   test('<< button pans backward by plot width', async ({ page }) => {
@@ -163,20 +165,22 @@ test.describe('Table Pagination Navigation', () => {
   })
 
   test('>> button pans forward by plot width', async ({ page }) => {
-    // First go back by plot width
+    // Go back by TWO plot widths (avoid triggering Latest mode on forward)
+    await page.locator('.pagination button[aria-label="Pan backward by one plot width"]').click()
+    await page.waitForTimeout(500)
     await page.locator('.pagination button[aria-label="Pan backward by one plot width"]').click()
     await page.waitForTimeout(500)
 
     const backText = await page.locator('.pagination .page-info').textContent()
-    expect(backText).toBe('1,441-1,460 of 254,859 × 1m')
+    expect(backText).toBe('2,881-2,900 of 254,859 × 1m')
 
     // Click >> button (pan forward by plot width)
     await page.locator('.pagination button[aria-label="Pan forward by one plot width"]').click()
     await page.waitForTimeout(500)
 
-    // Should return to Latest mode (1-20)
+    // Should move forward by one plot width to 1,441-1,460 (not Latest mode)
     const forwardText = await page.locator('.pagination .page-info').textContent()
-    expect(forwardText).toBe('1-20 of 254,859 × 1m')
+    expect(forwardText).toBe('1,441-1,460 of 254,859 × 1m')
   })
 
   test('|< button jumps to earliest data', async ({ page }) => {