Remove cans feature; harden pw_/tok_ cookie flags (pre-release fixes) (#307)

README.md

@@ -10,7 +10,7 @@ a web UI for sharing text and small files.
 
 ## Features
 
-- Text pastes and cans (multiple items in one share)
+- Text pastes
 - File attachments (one file per paste, up to 25 MB)
 - Password protected pastes
 - Expire after a specified time
@@ -66,7 +66,7 @@ go build -o palette ./cmd/palette
 | `PALETTE_ADDR` | `:8080` | Listen address |
 | `PALETTE_DB` | `palette.db` | SQLite database path |
 | `PALETTE_MAX_TEXT` | `5242880` | Max paste size in bytes (5 MB) |
-| `PALETTE_MAX_ITEM` | `26214400` | Max can item / file attachment size in bytes (25 MB) |
+| `PALETTE_MAX_ITEM` | `26214400` | Max file attachment / multipart size in bytes (25 MB) |
 | `PALETTE_ADMIN_KEY` | generated | Admin key; if unset a 32-char hex key is generated and persisted to `<db-dir>/admin-key` (0600) |
 | `PALETTE_DEFAULT_DARK` | dark on | Default dark mode for new visitors. Set `false`, `0`, or `off` to default to light mode. Visitors who toggle dark mode keep their choice in their browser. |
 | `PALETTE_UNLOCK_SECRET` | random per start | HMAC secret for password-unlock cookies. Set a fixed value to keep unlock sessions across restarts or across replicas. |