chore: improve Cloud E2E Test speed (#13103)

Before 11m

![before_wechat_2025-07-09_105625_157](https://github.com/user-attachments/assets/68eb1026-cacd-4d0f-a0b9-e4f76a1df45a)

After 7m

![afterwechat_2025-07-09_110410_383](https://github.com/user-attachments/assets/bc154cfb-88d2-4e25-bfab-bc0ecc0499ce)


#### PR Dependency Tree


* **PR #13103** 👈

This tree was auto-generated by
[Charcoal](https://github.com/danerwilliams/charcoal)

<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->

## Summary by CodeRabbit

* **Tests**
* Expanded cloud end-to-end test coverage by increasing test shards from
6 to 10 for improved parallelization.
* Added a new suite of end-to-end tests focused on page sharing,
including scenarios for sharing links, table of contents, edgeless mode,
and image previews.
* Removed several redundant or relocated sharing-related tests,
retaining only the reference link verification in the affected suite.
* Updated test output format to use the "list" reporter for clearer test
results.

<!-- end of auto-generated comment: release notes by coderabbit.ai -->

.github/workflows/build-test.yml

@@ -1064,24 +1064,36 @@ jobs:
       fail-fast: false
       matrix:
         tests:
-          - name: 'Cloud E2E Test 1/6'
+          - name: 'Cloud E2E Test 1/10'
             shard: 1
-            script: yarn affine @affine-test/affine-cloud e2e --forbid-only --shard=1/6
-          - name: 'Cloud E2E Test 2/6'
+            script: yarn affine @affine-test/affine-cloud e2e --forbid-only --shard=1/10
+          - name: 'Cloud E2E Test 2/10'
             shard: 2
-            script: yarn affine @affine-test/affine-cloud e2e --forbid-only --shard=2/6
-          - name: 'Cloud E2E Test 3/6'
+            script: yarn affine @affine-test/affine-cloud e2e --forbid-only --shard=2/10
+          - name: 'Cloud E2E Test 3/10'
             shard: 3
-            script: yarn affine @affine-test/affine-cloud e2e --forbid-only --shard=3/6
-          - name: 'Cloud E2E Test 4/6'
+            script: yarn affine @affine-test/affine-cloud e2e --forbid-only --shard=3/10
+          - name: 'Cloud E2E Test 4/10'
             shard: 4
-            script: yarn affine @affine-test/affine-cloud e2e --forbid-only --shard=4/6
-          - name: 'Cloud E2E Test 5/6'
+            script: yarn affine @affine-test/affine-cloud e2e --forbid-only --shard=4/10
+          - name: 'Cloud E2E Test 5/10'
             shard: 5
-            script: yarn affine @affine-test/affine-cloud e2e --forbid-only --shard=5/6
-          - name: 'Cloud E2E Test 6/6'
+            script: yarn affine @affine-test/affine-cloud e2e --forbid-only --shard=5/10
+          - name: 'Cloud E2E Test 6/10'
             shard: 6
-            script: yarn affine @affine-test/affine-cloud e2e --forbid-only --shard=6/6
+            script: yarn affine @affine-test/affine-cloud e2e --forbid-only --shard=6/10
+          - name: 'Cloud E2E Test 7/10'
+            shard: 7
+            script: yarn affine @affine-test/affine-cloud e2e --forbid-only --shard=7/10
+          - name: 'Cloud E2E Test 8/10'
+            shard: 8
+            script: yarn affine @affine-test/affine-cloud e2e --forbid-only --shard=8/10
+          - name: 'Cloud E2E Test 9/10'
+            shard: 9
+            script: yarn affine @affine-test/affine-cloud e2e --forbid-only --shard=9/10
+          - name: 'Cloud E2E Test 10/10'
+            shard: 10
+            script: yarn affine @affine-test/affine-cloud e2e --forbid-only --shard=10/10
           - name: 'Cloud Desktop E2E Test'
             shard: desktop
             script: |