Status LEDs, image model selection, backup restore, provider test, monthly versions

- Sidebar: three status LEDs (server, models, MCP) with an overview popover (/api/status)
- Images: preview stage, purpose-based model choice and reference images
  (Nano Banana Pro edit refines the chosen preview)
- Settings: restore a stored or uploaded backup (staged, applied on restart)
- Provider form: test connection; saving or reloading re-checks the status at once
- opencode Zen/Go: send x-opencode-session with a stable id per conversation
- Releases are named vYYYYMM-NNNNN; scripts/release.sh numbers, tags, builds and publishes
- Fix: backups made in the same second no longer overwrite each other

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

cli/src/main.rs

@@ -29,7 +29,7 @@ use tokio::sync::mpsc;
 use tokio_util::sync::CancellationToken;
 
 #[derive(Parser)]
-#[command(name = "codecraft", version, about = "CodeCraft in the terminal – a local coding agent")]
+#[command(name = "codecraft", version = codecraft_core::version::VERSION, about = "CodeCraft in the terminal – a local coding agent")]
 struct Cli {
     /// Start with this prompt
     prompt: Option<String>,
@@ -164,8 +164,7 @@ fn prompt_line(label: &str, secret: bool) -> Result<String> {
 }
 
 fn version_newer(server: &str, ours: &str) -> bool {
-    let parse = |v: &str| v.split('.').map(|p| p.parse::<u64>().unwrap_or(0)).collect::<Vec<_>>();
-    parse(server) > parse(ours)
+    codecraft_core::version::newer(server, ours)
 }
 
 fn target() -> String {
@@ -178,8 +177,8 @@ async fn self_update() -> Result<()> {
     let http = server::http();
     let info: Value = http.get(format!("{}/api/info", login.url)).send().await?.json().await?;
     let latest = info["version"].as_str().unwrap_or("0");
-    if !version_newer(latest, env!("CARGO_PKG_VERSION")) {
-        println!("codecraft {} is up to date.", env!("CARGO_PKG_VERSION"));
+    if !version_newer(latest, codecraft_core::version::VERSION) {
+        println!("codecraft {} is up to date.", codecraft_core::version::VERSION);
         return Ok(());
     }
     let url = format!("{}/cli/download/{}", login.url, target());
@@ -365,7 +364,7 @@ async fn main() -> Result<()> {
     // Notice when the server has a newer CLI.
     let mut status = String::new();
     if let Some(v) = env.server_cfg.as_ref().and_then(|s| s["version"].as_str()) {
-        if version_newer(v, env!("CARGO_PKG_VERSION")) {
+        if version_newer(v, codecraft_core::version::VERSION) {
             status = format!("update available: {v} – run `codecraft update`");
         }
     }