build(deps): bump actions/checkout from 4 to 7

Bumps [actions/checkout](https://github.com/actions/checkout) from 4 to 7.
- [Release notes](https://github.com/actions/checkout/releases)
- [Changelog](https://github.com/actions/checkout/blob/main/CHANGELOG.md)
- [Commits](https://github.com/actions/checkout/compare/v4...v7)

---
updated-dependencies:
- dependency-name: actions/checkout
  dependency-version: '7'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

.github/workflows/ci.yml

@@ -9,7 +9,7 @@ jobs:
   validate:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v7
 
       - name: Validate manifest JSON
         run: |

.github/workflows/release.yml

@@ -18,7 +18,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@v7
         with:
           ref: ${{ github.event.inputs.tag || github.ref }}
 

README.md

@@ -60,10 +60,13 @@ Additionally, **Shannon entropy analysis** is applied to detect random high-entr
 - **Zero dependencies** - Pure vanilla JavaScript, no jQuery, no external libraries
 - **Manifest V3** - Built for modern Chrome and Firefox with service worker architecture
 - **Passive scanning** - Runs automatically on every page load
-- **Custom keywords** - Add your own search terms to scan for
+- **SPA-aware** - MutationObserver re-scans dynamically injected DOM
+- **Per-tab alert badge** - Red-dot icon overlay when a tab has findings
+- **Custom keywords** - Add your own search terms to scan for (validated, 50 max)
 - **Dashboard** - Professional results page with filtering, sorting, and search
-- **Export** - Download findings as JSON or CSV
-- **Badge counter** - Shows finding count on the extension icon
+- **Export** - Download findings as JSON or CSV (with formula-injection sanitiser)
+- **Hardened bridge** - Per-page nonce on MAIN <-> ISOLATED CustomEvent channel
+- **Bounded storage** - 5000-finding cap with FIFO eviction; serialised writes across tabs
 - **Low footprint** - Minimal CPU and memory usage
 - **All frames** - Scans iframes and embedded content
 
@@ -117,8 +120,9 @@ keyFinder/
   js/
     background.js          # Service worker - storage and message handling
     patterns.js            # 80+ secret detection regex patterns
-    content.js             # Page scanner - DOM, scripts, network interception
-    interceptor.js         # XHR/Fetch hooking and window global scanning
+    content.js             # ISOLATED-world page scanner - DOM, scripts, network
+    interceptor-loader.js  # ISOLATED loader - sets nonce, injects MAIN-world interceptor
+    interceptor.js         # MAIN-world XHR/Fetch hooks + window global scanning
     popup.js               # Popup logic
     results.js             # Dashboard logic with filtering and export
   css/
@@ -132,10 +136,22 @@ keyFinder/
     build.sh               # Build Chrome and Firefox zip packages
 ```
 
+## Security
+
+See [SECURITY.md](SECURITY.md) for the threat model, disclosure policy, and known limitations. Release notes are in [CHANGELOG.md](CHANGELOG.md).
+
 ## Disclaimer
 
 This tool is intended for **security research and authorized testing only**. Use it to identify leaked secrets on your own applications or during authorized penetration tests. You are responsible for your own actions.
 
+
+## Professional services
+
+keyFinder is built and maintained by [GreyCore Labs](https://greycorelabs.com), a US-incorporated offensive security firm. Want the same eye on your own product?
+
+- [Penetration testing](https://greycorelabs.com/#plans) - web, API, mobile, cloud. Fixed quote within 24 hours, redacted sample report on request.
+- [Free external attack-surface scan](https://greycorelabs.com/#free-scan) - one-page report in 48 hours, no strings attached.
+
 ## License
 
 MIT