Strip astral-plane emojis from Tk button labels

Python 3.7's bundled Tcl/Tk on Windows is UCS-2 only and refuses
characters above U+FFFF. The button labels contained game-controller,
desktop, folder and refresh emojis (U+1F3AE, U+1F5A5, U+1F4C2, U+1F501),
so App.__init__ raised TclError and gui.main caught it, exited 1, and
the user saw 'nothing happened'.

Replace with plain Korean text. Per CLAUDE.md these emojis should not
have been added in the first place.

run-debug.bat

@@ -0,0 +1,22 @@
+@echo off
+REM Run the exe with output captured. Window does not auto-close.
+setlocal
+cd /d "%~dp0"
+echo Running sephiria_inv.exe ...
+echo.
+sephiria_inv.exe > sephiria_inv_console.log 2>&1
+set EC=%errorlevel%
+echo.
+echo === sephiria_inv.exe exited with code %EC% ===
+echo.
+echo --- sephiria_inv_console.log ---
+if exist sephiria_inv_console.log type sephiria_inv_console.log
+echo --- end console.log ---
+echo.
+echo --- sephiria_inv_startup.log ---
+if exist sephiria_inv_startup.log type sephiria_inv_startup.log
+echo --- end startup.log ---
+echo.
+echo Press any key to close this window.
+pause > nul
+endlocal

run.py

@@ -1,6 +1,116 @@
-"""PyInstaller entry shim."""
+"""PyInstaller entry shim with aggressive startup diagnostics.
 
+Writes a log entry the moment this module is loaded (before any project
+imports). Logs to two locations:
+  1. Next to the exe (sys.executable directory) -- usually the user's
+     Downloads folder; trivially findable.
+  2. %LOCALAPPDATA%/sephiria_inv/startup.log
+
+Either log existing tells us Python started. Neither existing means the
+PyInstaller bootloader died before Python ran (DLL/runtime issue).
+"""
+
+from __future__ import annotations
+
+import os
+import sys
+import traceback
+from datetime import datetime
+
+
+def _candidate_log_paths():
+    paths = []
+    # 1. Next to the exe (most discoverable for the user)
+    try:
+        exe_dir = os.path.dirname(os.path.abspath(sys.executable))
+        if exe_dir:
+            paths.append(os.path.join(exe_dir, "sephiria_inv_startup.log"))
+    except Exception:
+        pass
+    # 2. LOCALAPPDATA / home
+    try:
+        base = os.environ.get("LOCALAPPDATA") or os.path.expanduser("~")
+        folder = os.path.join(base, "sephiria_inv")
+        os.makedirs(folder, exist_ok=True)
+        paths.append(os.path.join(folder, "startup.log"))
+    except Exception:
+        pass
+    return paths
+
+
+def _write_log(msg: str) -> list:
+    written = []
+    stamp = datetime.now().isoformat()
+    for path in _candidate_log_paths():
+        try:
+            with open(path, "a", encoding="utf-8") as fh:
+                fh.write(f"\n=== {stamp} ===\n{msg}\n")
+            written.append(path)
+        except Exception:
+            pass
+    return written
+
+
+def _env_dump() -> str:
+    lines = [
+        f"python: {sys.version}",
+        f"executable: {sys.executable}",
+        f"argv: {sys.argv}",
+        f"frozen: {getattr(sys, 'frozen', False)}",
+        f"_MEIPASS: {getattr(sys, '_MEIPASS', '<none>')}",
+        f"cwd: {os.getcwd()}",
+        f"PATH head: {os.environ.get('PATH', '')[:200]}",
+        f"LOCALAPPDATA: {os.environ.get('LOCALAPPDATA', '<none>')}",
+    ]
+    return "\n".join(lines)
+
+
+# === MODULE-IMPORT BREADCRUMB ===
+# This runs the moment Python loads the entry script. If this never appears
+# in either log, the PyInstaller bootloader failed before Python started.
+_BOOT_LOGS = _write_log("BOOT: run.py loaded\n" + _env_dump())
+
+
+def _show_error(title: str, body: str) -> None:
+    try:
+        import tkinter as tk
+        from tkinter import scrolledtext
+        root = tk.Tk()
+        root.title(title)
+        root.geometry("780x460")
+        txt = scrolledtext.ScrolledText(root, wrap="word")
+        txt.pack(fill="both", expand=True)
+        txt.insert("1.0", body)
+        tk.Button(root, text="Close", command=root.destroy).pack(pady=4)
+        root.mainloop()
+    except Exception:
+        pass
+
+
+def _main() -> int:
+    try:
         from sephiria_inv.__main__ import main
+    except BaseException:
+        tb = traceback.format_exc()
+        logs = _write_log("IMPORT FAIL\n" + tb + "\n--env--\n" + _env_dump())
+        _show_error(
+            "sephiria_inv: import failed",
+            f"Failed to import sephiria_inv.__main__\n\nLogs: {logs}\n\n{tb}",
+        )
+        return 11
+    try:
+        return int(main() or 0)
+    except SystemExit:
+        raise
+    except BaseException:
+        tb = traceback.format_exc()
+        logs = _write_log("RUNTIME FAIL\n" + tb)
+        _show_error(
+            "sephiria_inv: runtime error",
+            f"Crashed during main()\n\nLogs: {logs}\n\n{tb}",
+        )
+        return 12
+
 
 if __name__ == "__main__":
-    raise SystemExit(main())
+    raise SystemExit(_main())

sephiria_inv/gui.py

@@ -409,11 +409,11 @@ class ScreenshotFrame(ttk.Frame):
 
         ctl = ttk.Frame(self)
         ctl.pack(fill="x")
-        ttk.Button(ctl, text="🎮 게임 창 선택…", command=self._pick_window).pack(side="left")
+        ttk.Button(ctl, text="게임 창 선택…", command=self._pick_window).pack(side="left")
-        ttk.Button(ctl, text="🖥 전체 화면 캡처", command=self._capture_screen).pack(side="left", padx=4)
+        ttk.Button(ctl, text="전체 화면 캡처", command=self._capture_screen).pack(side="left", padx=4)
-        ttk.Button(ctl, text="📂 파일 열기…", command=self._open_file).pack(side="left", padx=4)
+        ttk.Button(ctl, text="파일 열기…", command=self._open_file).pack(side="left", padx=4)
-        ttk.Button(ctl, text="🔁 영역 재지정", command=self._reselect_bbox).pack(side="left", padx=4)
+        ttk.Button(ctl, text="영역 재지정", command=self._reselect_bbox).pack(side="left", padx=4)
-        ttk.Button(ctl, text="✅ 이 구성으로 계산", command=self._confirm).pack(side="right")
+        ttk.Button(ctl, text="이 구성으로 계산", command=self._confirm).pack(side="right")
 
         self.status = ttk.Label(
             self,