refactor(cli): move cmd_get/list/history/status/sync into commands/

crates/relicario-cli/src/commands/status.rs

@@ -0,0 +1,52 @@
+//! `relicario status` — vault-level summary (counts, last commit, last backup).
+
+use anyhow::Result;
+
+pub fn cmd_status() -> Result<()> {
+    let vault = crate::session::UnlockedVault::unlock_interactive()?;
+    let root = vault.root().to_path_buf();
+    let manifest = vault.load_manifest()?;
+
+    let total_items = manifest.items.len();
+    let trashed_items = manifest.items.values().filter(|e| e.trashed_at.is_some()).count();
+    let active_items = total_items - trashed_items;
+
+    let (attachment_count, attachment_bytes) = manifest.items.values()
+        .flat_map(|e| e.attachment_summaries.iter())
+        .fold((0u64, 0u64), |(c, b), s| (c + 1, b + s.size));
+
+    let last_commit = crate::helpers::git_command(&root, &[
+        "log", "-1", "--pretty=format:%h %s",
+    ]).output()
+        .ok()
+        .and_then(|o| String::from_utf8(o.stdout).ok())
+        .map(|s| s.trim().to_string())
+        .unwrap_or_else(|| "(no commits)".into());
+
+    // Last backup age (read from marker written by cmd_backup_export).
+    let last_backup_path = vault.root().join(".relicario").join("last_backup");
+    let last_backup_str = if last_backup_path.exists() {
+        let line = std::fs::read_to_string(&last_backup_path)
+            .unwrap_or_default()
+            .trim()
+            .to_string();
+        // Parse the ISO-8601 we wrote in cmd_backup_export.
+        match chrono::DateTime::parse_from_rfc3339(&line) {
+            Ok(then) => {
+                let now = relicario_core::now_unix();
+                let age = now - then.timestamp();
+                crate::helpers::humanize_age(age.max(0))
+            }
+            Err(_) => "unknown".to_string(),
+        }
+    } else {
+        "never".to_string()
+    };
+
+    println!("Vault:    {}", root.display());
+    println!("Items:    {total_items} total ({active_items} active, {trashed_items} trashed)");
+    println!("Attachments: {attachment_count} ({attachment_bytes} bytes)");
+    println!("Last commit: {last_commit}");
+    println!("Last export: {last_backup_str}");
+    Ok(())
+}