feat: generic user, dynamic paths, simplified ISO build pipeline

browser.py

@@ -14,8 +14,9 @@ from PyQt5.QtWidgets import (
     QTreeWidget, QTreeWidgetItem, QAbstractItemView
 )
 
-HOME_URL       = "file:///home/jgitta/kiosk-home/index.html"
-BOOKMARKS_FILE = "/home/jgitta/kiosk-browser/bookmarks.json"
+_HOME          = pathlib.Path.home()
+HOME_URL       = f"file://{_HOME}/kiosk-home/index.html"
+BOOKMARKS_FILE = str(_HOME / "kiosk-browser/bookmarks.json")
 CDP_PORT       = 9222
 TOOLBAR_H      = 72          # single row — was 142 (82 + 60)
 # Screen size is detected dynamically in main() after QApplication starts
@@ -736,7 +737,7 @@ class KioskOverlay(QWidget):
 
 # ── Chrome launcher ───────────────────────────────────────────────
 def launch_chrome():
-    profile_dir = pathlib.Path("/home/jgitta/chromium-kiosk")
+    profile_dir = _HOME / "chromium-kiosk"
     profile_dir.mkdir(parents=True, exist_ok=True)
 
     for name in ("SingletonLock", "SingletonSocket", "SingletonCookie"):
@@ -767,12 +768,16 @@ def launch_chrome():
     cookies_db = profile_dir / "Default" / "Cookies"
     if cookies_db.exists():
         try:
+            _cfg        = json.loads((_HOME / "kiosk-browser/config.json").read_text())
+            _email_url  = _cfg.get("urls", {}).get("email", "")
+            _email_host = _email_url.split("//")[-1].split("/")[0] if _email_url else ""
             conn = sqlite3.connect(str(cookies_db))
-            conn.execute(
-                "DELETE FROM cookies WHERE host_key LIKE '%mail.jgitta.com%'")
-            conn.commit()
+            if _email_host:
+                conn.execute("DELETE FROM cookies WHERE host_key LIKE ?",
+                             (f"%{_email_host}%",))
+                conn.commit()
+                print(f"Cleared stale session cookie for {_email_host}")
             conn.close()
-            print("Cleared stale Roundcube session cookie")
         except Exception as e:
             print(f"Cookie clear warning: {e}")
 
@@ -789,7 +794,7 @@ def launch_chrome():
         "--disable-extensions",
         "--disable-gpu",
         "--disable-dev-shm-usage",
-        "--user-data-dir=/home/jgitta/chromium-kiosk",
+        f"--user-data-dir={_HOME / 'chromium-kiosk'}",
         f"--remote-debugging-port={CDP_PORT}",
         "--remote-allow-origins=*",
         f"--window-position=0,{TOOLBAR_H}",