new finctions and fixes

README.md

@@ -15,10 +15,11 @@ The script creates `data/db` and `data/files`, builds the project, and starts it
 - Real-time collaborative editing over WebSocket.
 - Nicknames stored in `localStorage`.
 - Change authors shown in history.
-- Line numbering enabled by default, with a persistent toggle.
+- Line numbering enabled by default, with per-account preferences stored separately for each note or pad.
+- Signed-in users with read/write access can save personal compact view, line, font, size, authorship, and color preferences; resource-linked rows are removed with the note, pad, or account.
 - Owner color displayed next to each line.
 - Image and file uploads to `data/files/pads/<id>_<token>/` or `data/files/notes/<id>_<token>/`.
-- Automatic Markdown link insertion after upload.
+- Compact attachment aliases are inserted after upload: `[file=name.ext,label]` and `[image=name.ext,alt]`. The file dialog also provides standard Markdown for compatibility.
 - Markdown and Mermaid diagram rendering.
 - History with snippets, previews, and version restore.
 - Alert blocks: `success`, `info`, `warning`, and `danger`.
@@ -150,6 +151,8 @@ RustPad supports two interchangeable attachment backends selected in `.env`:
 
 Public application URLs remain `/f/{token}/{filename}` for both backends. RustPad validates access and streams objects through the API, so the bucket does not need to be public and existing database records do not require migration.
 
+Set `ASSET_CACHE_MAX_AGE_SECONDS=0` or `FILE_CACHE_MAX_AGE_SECONDS=0` to disable browser caching. RustPad then sends `Cache-Control: no-cache, no-store, must-revalidate`; positive values use `public, max-age=<seconds>`.
+
 For the optional Docker Garage service, configure the S3 variables shown in `.env.example`, use strong unique credentials, and run:
 
 ```sh