refactor: resolved cross-platform build warnings and add windows-sys features

- Add conditional attributes to silence dead-code warnings on platform-specific code and fields.
- Update target dependencies in pi-walker/Cargo.toml with explicit windows-sys feature sets.
- Simplify time cast expressions in linux_reflink and rcopy modules.

crates/pi-iso/src/linux_reflink.rs

@@ -248,14 +248,8 @@ mod imp {
 
 	fn set_times_nofollow(path: &Path, meta: &fs::Metadata) -> std::io::Result<()> {
 		let times = [
-			libc::timespec {
+			libc::timespec { tv_sec: meta.atime() as _, tv_nsec: meta.atime_nsec() as libc::c_long },
-				tv_sec:  meta.atime() as libc::time_t,
+			libc::timespec { tv_sec: meta.mtime() as _, tv_nsec: meta.mtime_nsec() as libc::c_long },
-				tv_nsec: meta.atime_nsec() as libc::c_long,
-			},
-			libc::timespec {
-				tv_sec:  meta.mtime() as libc::time_t,
-				tv_nsec: meta.mtime_nsec() as libc::c_long,
-			},
 		];
 		let c_path = CString::new(path.as_os_str().as_bytes())?;
 		// SAFETY: `c_path` and `times` live until the syscall returns; the

crates/pi-iso/src/rcopy.rs

@@ -413,11 +413,10 @@ fn filetime_set(path: &Path, mtime: std::time::SystemTime) -> std::io::Result<()
 	let dur = mtime
 		.duration_since(std::time::UNIX_EPOCH)
 		.map_err(std::io::Error::other)?;
-	let times =
+	let times = [libc::timespec { tv_sec: dur.as_secs() as _, tv_nsec: 0 }, libc::timespec {
-		[libc::timespec { tv_sec: dur.as_secs() as libc::time_t, tv_nsec: 0 }, libc::timespec {
+		tv_sec:  dur.as_secs() as _,
-			tv_sec:  dur.as_secs() as libc::time_t,
+		tv_nsec: dur.subsec_nanos() as libc::c_long,
-			tv_nsec: dur.subsec_nanos() as libc::c_long,
+	}];
-		}];
 	let c_path = std::ffi::CString::new(path.as_os_str().as_bytes())?;
 	// SAFETY: `c_path` and `times` outlive the syscall; the kernel does
 	// not retain the pointers.

crates/pi-shell/src/coreutils.rs

@@ -7,9 +7,11 @@
 //! thread-local context isolated across concurrent pipeline stages and avoids
 //! blocking the async runtime on synchronous utility I/O.
 
+#[cfg(unix)]
+use std::ffi::OsStr;
 use std::{
 	collections::HashMap,
-	ffi::{OsStr, OsString},
+	ffi::OsString,
 	io::{self, Read, Write},
 	panic::catch_unwind,
 	sync::{
@@ -106,6 +108,7 @@ async fn run_uutil<SE: ShellExtensions>(
 
 	// brush passes the command name as the first `CommandArg`, which is exactly
 	// the argv[0] uutils' argument parsing expects.
+	#[cfg_attr(not(unix), allow(unused_mut))]
 	let mut argv: Vec<OsString> = args
 		.iter()
 		.map(|arg| OsString::from(arg.to_string()))

crates/pi-shell/src/fd.rs

@@ -511,12 +511,14 @@ struct SizeFilter {
 	bytes:    u64,
 }
 
+#[cfg_attr(not(unix), allow(dead_code))]
 #[derive(Clone, Copy)]
 enum OwnerSide {
 	Include(u32),
 	Exclude(u32),
 }
 
+#[cfg_attr(not(unix), allow(dead_code))]
 #[derive(Clone, Copy)]
 struct OwnerMatcher {
 	user:  Option<OwnerSide>,
@@ -1183,6 +1185,7 @@ fn matches_owner_filters(filters: &[OwnerMatcher], _metadata: Option<&Metadata>)
 	filters.is_empty()
 }
 
+#[cfg(unix)]
 const fn owner_side_matches(side: OwnerSide, actual: u32) -> bool {
 	match side {
 		OwnerSide::Include(expected) => actual == expected,

crates/pi-uutils-ctx/src/lib.rs

@@ -29,6 +29,7 @@ struct Ctx {
 	stdin:                 Box<dyn Read + Send>,
 	/// Raw fd backing `stdin` when it is a real OS file/pipe, used for
 	/// cancellable readiness polling on unix. `None` for non-fd readers.
+	#[cfg_attr(not(unix), allow(dead_code))]
 	stdin_fd:              Option<i32>,
 	/// Whether stdin is a shell pipe/stream that should be searched implicitly.
 	stdin_is_search_input: bool,

crates/pi-walker/Cargo.toml

@@ -20,4 +20,10 @@ rayon.workspace = true
 libc.workspace = true
 
 [target.'cfg(windows)'.dependencies]
-windows-sys = { workspace = true, features = ["Wdk_Storage_FileSystem"] }
+windows-sys = { workspace = true, features = [
+	"Wdk_Storage_FileSystem",
+	"Win32_Foundation",
+	"Win32_Security",
+	"Win32_Storage_FileSystem",
+	"Win32_System_IO",
+] }

crates/vendor/uu-find/src/find/matchers/group.rs

@@ -12,6 +12,7 @@ use nix::unistd::Group;
 use super::{ComparableValue, Matcher, MatcherIO, WalkEntry};
 
 pub struct GroupMatcher {
+	#[cfg_attr(not(unix), allow(dead_code))]
 	gid: ComparableValue,
 }
 

crates/vendor/uu-find/src/find/matchers/user.rs

@@ -12,6 +12,7 @@ use nix::unistd::User;
 use super::{ComparableValue, Matcher, MatcherIO, WalkEntry};
 
 pub struct UserMatcher {
+	#[cfg_attr(not(unix), allow(dead_code))]
 	uid: ComparableValue,
 }
 

crates/vendor/uu-stat/src/stat.rs

@@ -146,8 +146,10 @@ for details about the options it supports.";
 		#[error("{directive}: invalid directive")]
 		InvalidDirective { directive: String },
 		#[error("cannot read table of mounted file systems: {error}")]
+		#[cfg_attr(not(unix), allow(dead_code))]
 		CannotReadFilesystem { error: String },
 		#[error("using '-' to denote standard input does not work in file system mode")]
+		#[cfg_attr(not(unix), allow(dead_code))]
 		StdinFilesystemMode,
 		#[error("cannot read file system information for {file}: {error}")]
 		CannotReadFilesystemInfo { file: String, error: String },
@@ -275,6 +277,7 @@ for details about the options it supports.";
 	#[derive(Debug)]
 	pub enum OutputType<'a> {
 		Str(String),
+		#[cfg_attr(not(unix), allow(dead_code))]
 		OsStr(&'a OsString),
 		Integer(i64),
 		Unsigned(u64),
@@ -413,9 +416,12 @@ for details about the options it supports.";
 		show_fs:            bool,
 		from_user:          bool,
 		files:              Vec<OsString>,
+		#[cfg_attr(not(unix), allow(dead_code))]
 		mount_list:         OnceCell<Option<Vec<OsString>>>,
+		#[cfg_attr(not(unix), allow(dead_code))]
 		mount_list_needed:  bool,
 		default_tokens:     Vec<Token>,
+		#[cfg_attr(not(unix), allow(dead_code))]
 		default_dev_tokens: Vec<Token>,
 	}
 

packages/coding-agent/src/extensibility/extensions/types.ts

@@ -1044,7 +1044,6 @@ export interface RegisteredCommand {
 // ============================================================================
 
 /** Handler function type for events */
-// biome-ignore lint/suspicious/noConfusingVoidType: void allows bare return statements
 export type ExtensionHandler<E, R = undefined> = (event: E, ctx: ExtensionContext) => Promise<R | void> | R | void;
 
 /** Service tiers accepted by each provider family. */

packages/coding-agent/src/extensibility/hooks/types.ts

@@ -444,7 +444,6 @@ export type {
  * Handler function type for each event.
  * Handlers can return R, undefined, or void (bare return statements).
  */
-// biome-ignore lint/suspicious/noConfusingVoidType: void allows bare return statements in handlers
 export type HookHandler<E, R = undefined> = (event: E, ctx: HookContext) => Promise<R | void> | R | void;
 
 export interface HookMessageRenderOptions {

packages/natives/CHANGELOG.md

@@ -5,6 +5,7 @@
 ### Fixed
 
 - napi binding build failures now surface the exit code and the tail of stdout/stderr instead of a bare "napi build failed" message ([#6799](https://github.com/can1357/oh-my-pi/pull/6799)).
+- Silenced cross-platform Rust build warnings: dead-code on unix-only fields/helpers in `pi-uutils-ctx`, `pi-shell` (fd owner filters, coreutils argv), and vendored `uu-find`/`uu-stat` when compiling for Windows, and deprecated `libc::time_t` casts in `pi-iso` on musl. `pi-walker` now declares the `windows-sys` features it uses (`Win32_Foundation`, `Win32_Security`, `Win32_Storage_FileSystem`, `Win32_System_IO`) instead of relying on workspace-wide feature unification.
 
 ### Changed
 

scripts/run-rs-task.ts

@@ -26,7 +26,7 @@ const VENDORED_FORK_EXCLUDES = [
 const TASK_COMMANDS = {
 	"check:rs": [
 		["cargo", "fmt", "--all", "--", "--check"],
-		["cargo", "clippy", "--workspace", ...VENDORED_FORK_EXCLUDES, "--", "-D", "warnings"],
+		["cargo", "clippy", "--workspace", ...VENDORED_FORK_EXCLUDES, "--no-deps", "--", "-D", "warnings"],
 	],
 	"fix:rs": [
 		["cargo", "fmt", "--all"],
@@ -43,7 +43,7 @@ const TASK_COMMANDS = {
 		],
 	],
 	"fmt:rs": [["cargo", "fmt", "--all"]],
-	"lint:rs": [["cargo", "clippy", "--workspace", ...VENDORED_FORK_EXCLUDES, "--", "-D", "warnings"]],
+	"lint:rs": [["cargo", "clippy", "--workspace", ...VENDORED_FORK_EXCLUDES, "--no-deps", "--", "-D", "warnings"]],
 	"test:rs": [
 		[
 			"cargo",