Spoof-when-possible browser personas, Tier-2 telemetry kill + artifact wipe, UI polish

Browser: identity persona dropdown (blend Windows-Chrome / Firefox / mac-Safari / hardened / custom) + cookie policy dropdown. Blend personas relax RFP/FPI/strict-TP so the machine looks normal while still hiding behind the chain. Persona TZ applied via env var; UA / language / locale / screen via user.js. WebRTC still forced off (it leaks real IP). Privacy: Telemetry kill toggle (DiagTrack, Activity History, ad ID, Cortana, scheduled tasks) with full snapshot/restore. One-button forensic artifact wipe (TEMP, Recent, Jump Lists, Prefetch, MRU, clipboard). UI: neon palette, glow card borders, gradient header banner.
Co-authored-by: Cursor <cursoragent@cursor.com>

proxy_chain_manager/config.py

@@ -194,6 +194,7 @@ class Settings:
     disable_ipv6_while_active: bool = False  # disable IPv6 bindings while chain runs (Admin)
     harden_webrtc_enabled: bool = False      # Chrome/Edge WebRTC policy (Admin)
     lan_lockdown_enabled: bool = False       # kill LLMNR/NetBIOS/mDNS while chain runs
+    telemetry_kill_enabled: bool = False     # disable DiagTrack + Activity History (Admin)
 
     # ── hardened browser ────────────────────────────────────────────────────
     firefox_path: str = ""
@@ -210,6 +211,8 @@ class Settings:
     browser_first_party_isolation: bool = True
     browser_strict_tracking_protection: bool = True
     browser_timezone_utc: bool = True
+    browser_persona: str = "blend_windows_chrome"
+    browser_cookie_mode: str = "block_third_party"
 
     # ── sources ───────────────────────────────────────────────────────────
     sources: list[str] = field(