feat: improve inspector UI for processes and fix PTY terminal

- Simplify ProcessRunTab layout: compact form with collapsible Advanced section for timeout/maxOutputBytes
- Rewrite ProcessesTab: collapsible create form, lightweight list items with status dots, clean detail panel with tabs
- Extract error details: use problem.detail instead of generic "Stream Error" title for better error messages
- Fix GhosttyTerminal binary frame parsing: handle server's binary ArrayBuffer control frames (ready/exit/error)
- Enable WebSocket proxying in Vite dev server with ws: true
- Set TERM=xterm-256color default for TTY processes so tools like tmux, vim, htop work out of the box
- Remove orange gradient background from terminal container for cleaner look
- Remove orange left border from selected process list items
- Update inspector CSS with new process/terminal styles

Co-Authored-By: Claude Haiku 4.5 <noreply@anthropic.com>

Cargo.toml

@@ -32,7 +32,7 @@ schemars = "0.8"
 utoipa = { version = "4.2", features = ["axum_extras"] }
 
 # Web framework
-axum = "0.7"
+axum = { version = "0.7", features = ["ws"] }
 tower = { version = "0.5", features = ["util"] }
 tower-http = { version = "0.5", features = ["cors", "trace"] }