Remove pricing/tier details from public docs

CHANGELOG.md

@@ -25,4 +25,4 @@
 - Single-file binary (Node.js SEA) — no runtime dependencies
 - Web management dashboard (bilingual EN/ZH)
 - Auto-detection of installed AI apps and credentials
-- License system: Free (50 req/day) / Pro (unlimited)
+- License system with device management

PRIVACY.md

@@ -34,7 +34,7 @@ OpenRelay makes the following network connections:
 2. **License verification server** (`license.limitlessmeto.com`, hosted on Cloudflare) — periodic license status check
    - **Sent**: anonymous device identifier and license token
    - **NOT sent**: credentials, conversation content, usage details, or personal information
-   - **Purpose**: verify license tier (Free / Pro) and active device count
+   - **Purpose**: verify license status and active device count
 3. **GitHub Releases API** (optional) — to check for software updates
 
 ## Local Logging

README.md

@@ -133,7 +133,7 @@ See [DISCLAIMER.md](DISCLAIMER.md) and [PRIVACY.md](PRIVACY.md) for details.
 
 Open Core model:
 - **Framework** (proxy, format translation, config): [MIT](LICENSE)
-- **Pro features** (custom model groups, unlimited requests): [Commercial](COMMERCIAL-LICENSE.txt)
+- **Pro features** (custom model groups, priority support): [Commercial](COMMERCIAL-LICENSE.txt)
 
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