Add web client for session management and console interaction

Implements a full-featured web interface for mux with:
- TypeScript type generation from Rust structs via TypeShare
- HTTP/WebSocket API for session management and real-time updates
- Type-safe TypeScript client library (@mux/client)
- React 19 frontend with session list, console, and chat interface
- Terminal emulation with xterm.js for browser-based console access
- Embedded static file serving in Rust binary via include_dir

Architecture:
- Dual protocol: Unix socket (existing CLI/TUI) + HTTP server (web)
- REST API endpoints for CRUD operations on sessions
- WebSocket /ws/events for real-time session updates
- WebSocket /ws/console/:id for PTY streaming with base64 encoding
- Vite + Tailwind CSS v4 + Radix UI for modern frontend

Usage:
- Start daemon with: cargo run -- daemon --http-port 3030
- Access web UI at: http://localhost:3030
- Zero breaking changes to existing CLI/TUI functionality

🤖 Generated with [Claude Code](https://claude.com/claude-code)

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

Author: shepherdjerred

packages/multiplexer/Cargo.lock

@@ -55,6 +55,9 @@ exec = "0.3"
 async-trait = "0.1"
 nucleo-matcher = "0.3"
 fs2 = "0.4"
+base64 = "0.22"
+include_dir = "0.7"
+mime_guess = "2"
 
 # HTTP Proxy with TLS interception
 hudsucker = { version = "0.24", default-features = false, features = ["rcgen-ca", "rustls-client"] }
@@ -77,18 +80,20 @@ serde_yaml = "0.9"
 # Time handling (for certificate generation)
 time = "0.3"
 
+# HTTP/WebSocket server
+axum = { version = "0.7", features = ["ws"] }
+tower = "0.5"
+tower-http = { version = "0.6", features = ["cors", "trace"] }
+hyper = { version = "1", features = ["full"] }
+hyper-util = { version = "0.1", features = ["tokio", "server"] }
+http-body-util = "0.1"
+
 [dev-dependencies]
 cargo-husky = { version = "1", features = ["precommit-hook", "run-cargo-fmt", "run-cargo-clippy"] }
 tempfile = "3"
-base64 = "0.22"
 proptest = "1.0"
 
-# HTTP server/client for integration tests
-axum = "0.7"
-hyper = { version = "1", features = ["full"] }
-hyper-util = { version = "0.1", features = ["tokio", "server"] }
-http-body-util = "0.1"
-tower = "0.5"
+# HTTP client for integration tests
 reqwest = { version = "0.12", features = ["json", "blocking"] }
 tokio-test = "0.4"
 

packages/multiplexer/Cargo.toml

@@ -0,0 +1,35 @@
+use std::path::PathBuf;
+use std::process::Command;
+
+fn main() {
+    // Output directory for generated TypeScript types
+    let output_dir = PathBuf::from("web/shared/src/generated");
+
+    // Ensure output directory exists
+    std::fs::create_dir_all(&output_dir).expect("Failed to create output directory");
+
+    // Run TypeShare CLI to generate TypeScript types
+    // This requires 'typeshare' to be installed: cargo install typeshare-cli
+    let status = Command::new("typeshare")
+        .arg(".")
+        .arg("--lang=typescript")
+        .arg(format!("--output-file={}/index.ts", output_dir.display()))
+        .status();
+
+    match status {
+        Ok(exit_status) if exit_status.success() => {
+            println!("cargo:warning=TypeShare generation completed successfully");
+        }
+        Ok(exit_status) => {
+            println!("cargo:warning=TypeShare CLI failed with status: {}", exit_status);
+            println!("cargo:warning=Install typeshare-cli: cargo install typeshare-cli");
+        }
+        Err(e) => {
+            println!("cargo:warning=Failed to run TypeShare CLI: {}", e);
+            println!("cargo:warning=Install typeshare-cli: cargo install typeshare-cli");
+        }
+    }
+
+    // Trigger rebuild if any Rust source files change
+    println!("cargo:rerun-if-changed=src/");
+}