cli: satisfy clippy and rustfmt

Refactor build and rebuild command handlers to pass BuildOptions instead
of multiple boolean flags, satisfying clippy's excessive-bools and
too-many-arguments lints.

Apply rustfmt output in CLI and core engine code.

crates/karapace-cli/src/commands/build.rs

@@ -8,9 +8,7 @@ pub fn run(
     store_path: &Path,
     manifest: &Path,
     name: Option<&str>,
-    locked: bool,
-    offline: bool,
-    require_pinned_image: bool,
+    options: BuildOptions,
     json: bool,
 ) -> Result<u8, String> {
     let layout = StoreLayout::new(store_path);
@@ -21,12 +19,6 @@ pub fn run(
     } else {
         Some(spinner("building environment..."))
     };
-    let options = BuildOptions {
-        locked,
-        offline,
-        require_pinned_image,
-    };
-
     let result = match engine.build_with_options(manifest, options) {
         Ok(r) => {
             if let Some(ref pb) = pb {

crates/karapace-cli/src/commands/pin.rs

@@ -32,8 +32,8 @@ pub fn run(
     json: bool,
     store_path: Option<&Path>,
 ) -> Result<u8, String> {
-    let manifest = parse_manifest_file(manifest_path)
-        .map_err(|e| format!("failed to parse manifest: {e}"))?;
+    let manifest =
+        parse_manifest_file(manifest_path).map_err(|e| format!("failed to parse manifest: {e}"))?;
 
     if check {
         if is_pinned(&manifest.base.image) {
@@ -65,9 +65,7 @@ pub fn run(
     if write_lock {
         let store = store_path.ok_or_else(|| "internal error: missing store path".to_owned())?;
         let engine = karapace_core::Engine::new(store);
-        engine
-            .build(manifest_path)
-            .map_err(|e| e.to_string())?;
+        engine.build(manifest_path).map_err(|e| e.to_string())?;
     }
 
     if json {

crates/karapace-cli/src/commands/rebuild.rs

@@ -8,9 +8,7 @@ pub fn run(
     store_path: &Path,
     manifest: &Path,
     name: Option<&str>,
-    locked: bool,
-    offline: bool,
-    require_pinned_image: bool,
+    options: BuildOptions,
     json: bool,
 ) -> Result<u8, String> {
     let layout = StoreLayout::new(store_path);
@@ -21,12 +19,6 @@ pub fn run(
     } else {
         Some(spinner("rebuilding environment..."))
     };
-    let options = BuildOptions {
-        locked,
-        offline,
-        require_pinned_image,
-    };
-
     let result = match engine.rebuild_with_options(manifest, options) {
         Ok(r) => {
             if let Some(ref pb) = pb {

crates/karapace-cli/src/main.rs

@@ -3,7 +3,7 @@ mod commands;
 use clap::{Parser, Subcommand};
 use clap_complete::Shell;
 use commands::{EXIT_FAILURE, EXIT_MANIFEST_ERROR, EXIT_STORE_ERROR};
-use karapace_core::{install_signal_handler, Engine};
+use karapace_core::{install_signal_handler, BuildOptions, Engine};
 use std::path::PathBuf;
 use std::process::ExitCode;
 
@@ -273,9 +273,11 @@ fn main() -> ExitCode {
             &store_path,
             &manifest,
             name.as_deref(),
-            locked,
-            offline,
-            require_pinned_image,
+            BuildOptions {
+                locked,
+                offline,
+                require_pinned_image,
+            },
             json_output,
         ),
         Commands::Rebuild {
@@ -289,22 +291,18 @@ fn main() -> ExitCode {
             &store_path,
             &manifest,
             name.as_deref(),
-            locked,
-            offline,
-            require_pinned_image,
+            BuildOptions {
+                locked,
+                offline,
+                require_pinned_image,
+            },
             json_output,
         ),
         Commands::Pin {
             manifest,
             check,
             write_lock,
-        } => commands::pin::run(
-            &manifest,
-            check,
-            write_lock,
-            json_output,
-            Some(&store_path),
-        ),
+        } => commands::pin::run(&manifest, check, write_lock, json_output, Some(&store_path)),
         Commands::Enter { env_id, command } => {
             commands::enter::run(&engine, &store_path, &env_id, &command)
         }

crates/karapace-core/src/engine.rs

@@ -172,9 +172,11 @@ impl Engine {
         let normalized = manifest.normalize()?;
 
         if options.offline && !normalized.system_packages.is_empty() {
-            return Err(CoreError::Runtime(karapace_runtime::RuntimeError::ExecFailed(
-                "offline mode: cannot resolve system packages".to_owned(),
-            )));
+            return Err(CoreError::Runtime(
+                karapace_runtime::RuntimeError::ExecFailed(
+                    "offline mode: cannot resolve system packages".to_owned(),
+                ),
+            ));
         }
 
         if options.require_pinned_image