Add terminal client, memory, model fallback, version and install improvements

- codecraft: full-screen terminal client (ratatui) – local tools and files,
  models via the CodeCraft server gateway or own providers (standalone with a
  guided setup), slash commands, @files, permission dialogs, resume, update
- Static Linux CLI builds (x86_64/aarch64, cargo-zigbuild) served by the
  server: /cli/install.sh and /cli/download/<target>
- Project memory (remember tool, .codecraft/memory.md) and personal memory
- Model fallback when a host is unreachable or a budget is used up
- Version/commit in UI and health, daily release check, "What's new" dialog
- PWA: install button, maskable icon, manifest id and screenshots
- Case-insensitive detection of connection errors for retries

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

cli/Cargo.toml

@@ -2,7 +2,7 @@
 name = "codecraft-cli"
 version = "0.1.0"
 edition = "2024"
-description = "Command line client for CodeCraft"
+description = "CodeCraft in the terminal: a local coding agent using your CodeCraft server or your own model providers"
 license = "MIT"
 
 [[bin]]
@@ -10,11 +10,23 @@ name = "codecraft"
 path = "src/main.rs"
 
 [dependencies]
+codecraft-core = { path = "../core" }
 anyhow = "1"
+base64 = "0.22"
+chrono = "0.4"
 clap = { version = "4", features = ["derive", "env"] }
-futures-util = "0.3"
-reqwest = { version = "0.13", default-features = false, features = ["json", "rustls"] }
+crossterm = { version = "0.29", features = ["event-stream"] }
+eventsource-stream = "0.2"
+futures = "0.3"
+globset = "0.4"
+ignore = "0.4"
+ratatui = "0.30"
+regex = "1"
+reqwest = { version = "0.13", default-features = false, features = ["json", "stream", "rustls"] }
 serde = { version = "1", features = ["derive"] }
 serde_json = "1"
-tokio = { version = "1", features = ["macros", "rt-multi-thread", "io-std", "io-util", "fs", "time", "signal"] }
-tokio-tungstenite = { version = "0.28", default-features = false, features = ["connect", "rustls-tls-webpki-roots"] }
+similar = "2"
+tokio = { version = "1", features = ["macros", "rt-multi-thread", "io-std", "io-util", "fs", "time", "process", "sync", "signal"] }
+tokio-util = "0.7"
+toml = "1"
+unicode-width = "0.2"