Remove NaK/Rust dependency, port remaining functionality to native C++

Replace NaK Rust crate and nak_ffi with native C++ implementations:
- Game detection (Steam, Heroic, Bottles), VDF parser, icon extraction
- Prefix symlinks, SLR manager, Steam path detection
- Known games database

Add FUSE VFS optimizations: zero-copy reads via fuse_reply_data,
default_permissions mount option, FUSE_CAP_ASYNC_DIO, FUSE_CAP_EXPIRE_ONLY,
lookup cache parent index, cached mode bits, increased I/O buffer sizes.

Update build system, prefix setup, and various fixes.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

1 files changed, 0 insertions, 334 deletions

diff --git a/libs/nak/src/installers/mod.rs b/libs/nak/src/installers/mod.rs
deleted file mode 100644
index cf3eb85..0000000
--- a/libs/nak/src/installers/mod.rs
+++ /dev/null
@@ -1,334 +0,0 @@
-//! Mod manager installation logic
-//!
-//! Stripped for Fluorine: no common.rs, mo2.rs, plugin.rs, compatdata_scanner.rs.
-
-pub mod symlinks;
-
-mod prefix_setup;
-
-pub use prefix_setup::{
-    apply_dpi, apply_registry_for_game_path, auto_apply_game_registries, cleanup_prefix_drives,
-    install_all_dependencies, kill_wineserver, known_game_names, launch_dpi_test_app, DPI_PRESETS,
-};
-
-use std::error::Error;
-use std::fs;
-use std::sync::atomic::AtomicBool;
-use std::sync::Arc;
-
-use crate::logging::log_install;
-use crate::steam::SteamProton;
-
-// ============================================================================
-// Shared Types
-// ============================================================================
-
-/// Context for background installation tasks
-#[derive(Clone)]
-pub struct TaskContext {
-    pub status_callback: Arc<dyn Fn(String) + Send + Sync>,
-    pub log_callback: Arc<dyn Fn(String) + Send + Sync>,
-    pub progress_callback: Arc<dyn Fn(f32) + Send + Sync>,
-    pub cancel_flag: Arc<AtomicBool>,
-}
-
-impl TaskContext {
-    pub fn new(
-        status: impl Fn(String) + Send + Sync + 'static,
-        log: impl Fn(String) + Send + Sync + 'static,
-        progress: impl Fn(f32) + Send + Sync + 'static,
-        cancel: Arc<AtomicBool>,
-    ) -> Self {
-        Self {
-            status_callback: Arc::new(status),
-            log_callback: Arc::new(log),
-            progress_callback: Arc::new(progress),
-            cancel_flag: cancel,
-        }
-    }
-
-    pub fn set_status(&self, msg: String) {
-        (self.status_callback)(msg);
-    }
-
-    pub fn log(&self, msg: String) {
-        (self.log_callback)(msg);
-    }
-
-    pub fn set_progress(&self, p: f32) {
-        (self.progress_callback)(p);
-    }
-
-    pub fn is_cancelled(&self) -> bool {
-        self.cancel_flag.load(std::sync::atomic::Ordering::Relaxed)
-    }
-
-    /// Run a command that can be killed if the user cancels.
-    pub fn run_cancellable(&self, mut cmd: std::process::Command) -> Result<std::process::ExitStatus, Box<dyn std::error::Error>> {
-        let mut child = cmd.spawn()?;
-
-        loop {
-            match child.try_wait()? {
-                Some(status) => return Ok(status),
-                None => {
-                    if self.is_cancelled() {
-                        let _ = child.kill();
-                        let _ = child.wait();
-                        return Err("Cancelled".into());
-                    }
-                    std::thread::sleep(std::time::Duration::from_millis(250));
-                }
-            }
-        }
-    }
-}
-
-// ============================================================================
-// Shared Wine Registry Settings
-// ============================================================================
-
-/// Wine registry settings
-pub const WINE_SETTINGS_REG: &str = r#"Windows Registry Editor Version 5.00
-
-[HKEY_CURRENT_USER\Software\Wine\DllOverrides]
-"dwrite.dll"="native,builtin"
-"dwrite"="native,builtin"
-"winmm.dll"="native,builtin"
-"winmm"="native,builtin"
-"version.dll"="native,builtin"
-"version"="native,builtin"
-"ArchiveXL.dll"="native,builtin"
-"ArchiveXL"="native,builtin"
-"Codeware.dll"="native,builtin"
-"Codeware"="native,builtin"
-"TweakXL.dll"="native,builtin"
-"TweakXL"="native,builtin"
-"input_loader.dll"="native,builtin"
-"input_loader"="native,builtin"
-"RED4ext.dll"="native,builtin"
-"RED4ext"="native,builtin"
-"mod_settings.dll"="native,builtin"
-"mod_settings"="native,builtin"
-"scc_lib.dll"="native,builtin"
-"scc_lib"="native,builtin"
-"dxgi.dll"="native,builtin"
-"dxgi"="native,builtin"
-"dbghelp.dll"="native,builtin"
-"dbghelp"="native,builtin"
-"d3d12.dll"="native,builtin"
-"d3d12"="native,builtin"
-"wininet.dll"="native,builtin"
-"wininet"="native,builtin"
-"winhttp.dll"="native,builtin"
-"winhttp"="native,builtin"
-"dinput.dll"="native,builtin"
-"dinput8"="native,builtin"
-"dinput8.dll"="native,builtin"
-
-[HKEY_CURRENT_USER\Software\Wine]
-"ShowDotFiles"="Y"
-
-[HKEY_CURRENT_USER\Control Panel\Desktop]
-"FontSmoothing"="2"
-"FontSmoothingGamma"=dword:00000578
-"FontSmoothingOrientation"=dword:00000001
-"FontSmoothingType"=dword:00000002
-
-[HKEY_CURRENT_USER\Software\Microsoft\Windows NT\CurrentVersion\AppCompatFlags\Layers]
-@="~ HIGHDPIAWARE"
-
-[HKEY_CURRENT_USER\Software\Wine\AppDefaults\Pandora Behaviour Engine+.exe\X11 Driver]
-"Decorated"="N"
-
-[HKEY_CURRENT_USER\Software\Wine\AppDefaults\Vortex.exe\X11 Driver]
-"Decorated"="N"
-
-[HKEY_CURRENT_USER\Software\Wine\AppDefaults\SSEEdit.exe]
-"Version"="winxp"
-
-[HKEY_CURRENT_USER\Software\Wine\AppDefaults\SSEEdit64.exe]
-"Version"="winxp"
-
-[HKEY_CURRENT_USER\Software\Wine\AppDefaults\FO4Edit.exe]
-"Version"="winxp"
-
-[HKEY_CURRENT_USER\Software\Wine\AppDefaults\FO4Edit64.exe]
-"Version"="winxp"
-
-[HKEY_CURRENT_USER\Software\Wine\AppDefaults\TES4Edit.exe]
-"Version"="winxp"
-
-[HKEY_CURRENT_USER\Software\Wine\AppDefaults\TES4Edit64.exe]
-"Version"="winxp"
-
-[HKEY_CURRENT_USER\Software\Wine\AppDefaults\xEdit64.exe]
-"Version"="winxp"
-
-[HKEY_CURRENT_USER\Software\Wine\AppDefaults\SF1Edit64.exe]
-"Version"="winxp"
-
-[HKEY_CURRENT_USER\Software\Wine\AppDefaults\FNVEdit.exe]
-"Version"="winxp"
-
-[HKEY_CURRENT_USER\Software\Wine\AppDefaults\FNVEdit64.exe]
-"Version"="winxp"
-
-[HKEY_CURRENT_USER\Software\Wine\AppDefaults\xFOEdit.exe]
-"Version"="winxp"
-
-[HKEY_CURRENT_USER\Software\Wine\AppDefaults\xFOEdit64.exe]
-"Version"="winxp"
-
-[HKEY_CURRENT_USER\Software\Wine\AppDefaults\xSFEEdit.exe]
-"Version"="winxp"
-
-[HKEY_CURRENT_USER\Software\Wine\AppDefaults\xSFEEdit64.exe]
-"Version"="winxp"
-
-[HKEY_CURRENT_USER\Software\Wine\AppDefaults\xTESEdit.exe]
-"Version"="winxp"
-
-[HKEY_CURRENT_USER\Software\Wine\AppDefaults\xTESEdit64.exe]
-"Version"="winxp"
-
-[HKEY_CURRENT_USER\Software\Wine\AppDefaults\FO3Edit.exe]
-"Version"="winxp"
-
-[HKEY_CURRENT_USER\Software\Wine\AppDefaults\FO3Edit64.exe]
-"Version"="winxp"
-
-; =============================================================================
-; Native file browser integration (opens folders in native file manager)
-; =============================================================================
-[HKEY_CLASSES_ROOT\Folder\shell\explore\command]
-@="C:\\windows\\system32\\winebrowser.exe -nohome \"%1\""
-
-[HKEY_CLASSES_ROOT\Directory\shell\explore\command]
-@="C:\\windows\\system32\\winebrowser.exe -nohome \"%1\""
-
-[HKEY_CLASSES_ROOT\Folder\shell\open\command]
-@="C:\\windows\\system32\\winebrowser.exe -nohome \"%1\""
-
-[HKEY_CLASSES_ROOT\Directory\shell\open\command]
-@="C:\\windows\\system32\\winebrowser.exe -nohome \"%1\""
-
-; =============================================================================
-; Native text editor integration (opens text files in native editor)
-; =============================================================================
-[HKEY_CLASSES_ROOT\txtfile\shell\open\command]
-@="C:\\windows\\system32\\winebrowser.exe \"%1\""
-
-[HKEY_CLASSES_ROOT\inifile\shell\open\command]
-@="C:\\windows\\system32\\winebrowser.exe \"%1\""
-
-[HKEY_CLASSES_ROOT\.txt]
-@="txtfile"
-
-[HKEY_CLASSES_ROOT\.ini]
-@="inifile"
-
-[HKEY_CLASSES_ROOT\.cfg]
-@="txtfile"
-
-[HKEY_CLASSES_ROOT\.log]
-@="txtfile"
-
-[HKEY_CLASSES_ROOT\.xml]
-@="txtfile"
-
-[HKEY_CLASSES_ROOT\.json]
-@="txtfile"
-
-[HKEY_CLASSES_ROOT\.yml]
-@="txtfile"
-
-[HKEY_CLASSES_ROOT\.yaml]
-@="txtfile"
-"#;
-
-// ============================================================================
-// Shared Functions
-// ============================================================================
-
-/// Apply Wine registry settings to a prefix
-pub fn apply_wine_registry_settings(
-    prefix_path: &std::path::Path,
-    proton: &SteamProton,
-    log_callback: &impl Fn(String),
-    _app_id: Option<u32>,
-) -> Result<(), Box<dyn Error>> {
-    use std::io::Write;
-    use crate::config::AppConfig;
-    use crate::logging::{log_error, log_warning};
-    use crate::runtime_wrap;
-
-    let tmp_dir = AppConfig::get_tmp_path();
-    fs::create_dir_all(&tmp_dir)?;
-    let reg_file = tmp_dir.join("wine_settings.reg");
-
-    let mut file = fs::File::create(&reg_file)?;
-    file.write_all(WINE_SETTINGS_REG.as_bytes())?;
-
-    let wine_bin = proton.wine_binary().ok_or_else(|| {
-        let err_msg = format!(
-            "Wine binary not found for Proton '{}' (checked files/bin/wine and dist/bin/wine)",
-            proton.name
-        );
-        log_callback(format!("Error: {}", err_msg));
-        err_msg
-    })?;
-
-    let wineserver_bin = proton.wineserver_binary().unwrap_or_else(|| {
-        wine_bin.with_file_name("wineserver")
-    });
-
-    let bin_dir = proton.bin_dir().ok_or_else(|| {
-        let err_msg = "Could not determine Proton bin directory";
-        log_callback(format!("Error: {}", err_msg));
-        err_msg
-    })?;
-
-    let path_env = format!(
-        "{}:{}",
-        bin_dir.to_string_lossy(),
-        std::env::var("PATH").unwrap_or_default()
-    );
-
-    log_callback("Applying Wine registry settings...".to_string());
-    log_install("Running wine regedit...");
-
-    let reg_envs: Vec<(&str, String)> = vec![
-        ("WINEPREFIX", prefix_path.display().to_string()),
-        ("WINE", wine_bin.display().to_string()),
-        ("WINESERVER", wineserver_bin.display().to_string()),
-        ("PATH", path_env),
-        ("WINEDLLOVERRIDES", "mshtml=d".to_string()),
-        ("PROTON_USE_XALIA", "0".to_string()),
-    ];
-    let regedit_status = runtime_wrap::build_command(&wine_bin, &reg_envs)
-        .arg("regedit")
-        .arg(&reg_file)
-        .status();
-
-    match regedit_status {
-        Ok(status) => {
-            if status.success() {
-                log_callback("Registry settings applied successfully".to_string());
-                log_install("Wine registry settings applied successfully");
-            } else {
-                let msg = format!("regedit exited with code {:?}", status.code());
-                log_callback(format!("Warning: {}", msg));
-                log_warning(&msg);
-            }
-        }
-        Err(e) => {
-            let msg = format!("Failed to run regedit: {}", e);
-            log_callback(format!("Error: {}", msg));
-            log_error(&msg);
-            return Err(msg.into());
-        }
-    }
-
-    let _ = fs::remove_file(&reg_file);
-    Ok(())
-}