feat: Add cursor rules and configuration files (#39981)

## Description
Introduced a new directory for cursor-specific rules and behaviors,
including commit message guidelines and workspace rules for derived
files and Cypress tests. This enhances the consistency and clarity of
our development practices.


Fixes #`Issue Number`  
_or_  
Fixes `Issue URL`
> [!WARNING]  
> _If no issue exists, please create an issue first, and check with the
maintainers if the issue is valid._

## Automation

/ok-to-test tags=""

### 🔍 Cypress test results
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> [!CAUTION]  
> If you modify the content in this section, you are likely to disrupt
the CI result for your PR.

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## Communication
Should the DevRel and Marketing teams inform users about this change?
- [ ] Yes
- [ ] No


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

## Summary by CodeRabbit

- **Documentation**
- Expanded project guidelines to clarify best practices for team
communications, workspace organization, and testing procedures—enhancing
internal coordination and overall product quality.

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

.cursor/README.md

@@ -0,0 +1,27 @@
+# Cursor Rules
+
+This directory contains configuration for cursor-specific rules and behaviors.
+
+## Commit Message Rules
+
+- Messages must be concise and single-line
+- Must start with a verb (e.g., adds, removes, updates)
+- For significant changes:
+
+  ```
+  Heading
+
+  Detailed description
+  ```
+
+## Workspace Rules
+
+### Derived Files
+
+- Use `/*** */` for comments instead of `//`
+
+### Cypress Tests
+
+- Run command: `yarn cypress run --browser chrome --headless --spec {fileName}`
+- Execute from: `app/client` directory
+- File paths should be relative to `app/client`

.cursor/rules.json

@@ -0,0 +1,42 @@
+{
+  "commitRules": {
+    "style": {
+      "concise": true,
+      "singleLine": true,
+      "format": {
+        "prefix": "verb",
+        "allowedPrefixes": [
+          "adds",
+          "removes",
+          "updates",
+          "fixes",
+          "refactors",
+          "implements",
+          "improves"
+        ],
+        "bigChanges": {
+          "format": "heading + description",
+          "separator": "\n\n"
+        }
+      }
+    }
+  },
+  "workspaceRules": {
+    "derivedFiles": {
+      "commentStyle": {
+        "forbidden": "//",
+        "required": "/*** */"
+      }
+    },
+    "cypressTests": {
+      "runCommand": {
+        "directory": "app/client",
+        "command": "yarn cypress run --browser chrome --headless --spec {fileName}",
+        "filePathFormat": {
+          "input": "app/client/cypress/e2e/...",
+          "usage": "cypress/e2e/..."
+        }
+      }
+    }
+  }
+}