v0.8.8: kode serve — Web UI with WebSocket, @ resource discovery, 21no.de branding

New features:
- 'kode serve' command starts a Web UI server on localhost
- Zero-dep WebSocket implementation (RFC 6455, ~270 LOC)
- @ resource discovery: type @ in prompts to reference files and sessions
- File resolver with recursive glob (skips .git, node_modules, etc.)
- Session resolver for @sess:references
- Embedded single-page UI with 21no.de design tokens (colors, fonts)
- Streaming agent responses via WebSocket JSON events
- Prompt history with localStorage persistence
- Collapsible tool call blocks in the chat view
- Ctrl+Enter to send, Enter for newline, up/down for history

Architecture:
  internal/ws/       — RFC 6455 WebSocket (stdlib only, ~270 LOC)
  internal/resource/ — @ reference parsing and resolution
  cmd/kode/serve.go  — HTTP server, WS handler, agent loop
  cmd/kode/ui/       — Embedded HTML/CSS/JS (vanilla, zero frontend deps)

Usage: kode serve [--addr :8080] [--open]

All 11 packages pass. No external dependencies added.

Author: jkyberneees

cmd/kode/main.go

@@ -118,6 +118,11 @@ func main() {
 			fmt.Fprintf(os.Stderr, "kode: %v\n", err)
 			os.Exit(1)
 		}
+	case "serve":
+		if err := serveCmd(os.Args[2:]); err != nil {
+			fmt.Fprintf(os.Stderr, "kode: %v\n", err)
+			os.Exit(1)
+		}
 	default:
 		fmt.Fprintf(os.Stderr, "kode: unknown command %q\n", os.Args[1])
 		printUsage()
@@ -318,7 +323,9 @@ func printUsage() {
   kode continue [--id <id>] <task>
   kode session <list|show [id]|trim <id> <n>|delete <id>|cleanup <days>>
   kode repl [flags]
+  kode serve [--addr :8080] [--open]
   kode init [--global | -g] [--force | -f]
+  kode skill <list|view|save|delete|import|curate>
   kode version
 
 Commands:
@@ -329,6 +336,10 @@ Commands:
   repl                Interactive REPL mode (multi-turn session)
                        Accepts --model, --thinking, --sandbox, and
                        --sandbox-* flags just like kode run.
+  serve               Web UI server with WebSocket streaming
+                       Open http://localhost:8080 in your browser.
+                       Features: @ resource completion, session history,
+                       streaming agent responses.
   session             Manage sessions: list, show, delete, trim, cleanup
   skill               Manage skills: list, view, save, delete, import, curate
   init                Create a config file (default: ./kode.json)