Refactor Google Meet Transcripts Extension for Local Use

- Removed all cloud-related functionalities, including login prompts and token handling.
- Disabled Laxis cloud features, ensuring no data is sent to external servers.
- Updated manifest to reflect the new local-only functionality.
- Added a new Python server to handle transcripts locally, including WebSocket support.
- Implemented storage management for transcripts, including deduplication and file writing.
- Created a smoke test for the WebSocket server to simulate transcript updates.
- Updated README with setup instructions and usage details for the new local server.

google-meet-transcripts-extension/analytics.js

@@ -1 +1,4 @@
-//!function(e,t,c,r,n,s){e.GoogleAnalyticsObject=r,e[r]=e[r]||function(){(e[r].q=e[r].q||[]).push(arguments)},e[r].l=1*new Date,n=t.createElement(c),s=t.getElementsByTagName(c)[0],n.async=1,n.src=chrome.runtime.getURL("analytics/analyticsSource.js"),n.id="laxis-track",s.parentNode.insertBefore(n,s)}(window,document,"script","ga");let firstScript=document.getElementsByTagName("script")[1],s=document.createElement("script");s.src=chrome.runtime.getURL("analytics/load.js"),firstScript.parentNode.insertBefore(s,firstScript);
+// analytics.js — غیرفعال شد.
+// در نسخه‌ی اصلی laxis این فایل Google Analytics (laxis-track) را تزریق می‌کرد
+// و به analytics/analyticsSource.js و analytics/load.js وابسته بود (که دیگر وجود ندارند).
+// برای حذف ردیابی و ارسال داده، محتوای آن کاملاً برداشته شد. این فایل در manifest هم لود نمی‌شود.