fix: release CS-Scout 2.1.1 alpha 3

[EytleBB]

What changed

• resolve Perfect World manual-mode names through the signed Perfect World player search instead of the 5E search API
• support exact Chinese Steam nicknames and SteamID64 while rejecting ambiguous duplicate names
• automatically prepare a private official Python 3.12.10 runtime when Windows has only Python 3.13, a PyCharm-only interpreter, or no supported Python
• pin and verify the python.org URL, SHA-256, Authenticode signer, per-user target, and no-PATH/no-launcher install options
• restart the shared replay clock from zero when switching to a different player/view, while preserving progress on a repeated click of the active player
• update the Alpha 3 package definition, player guide, release notes, deployment example, and third-party notice

Root causes

Perfect World manual mode reused the 5E identity resolver, so a valid Chinese Perfect World/Steam nickname could fail even while SteamID64 worked. The Windows installer also only probed the Python Launcher and PATH for 3.11/3.12, so Python 3.13 and IDE-only setups were reported as missing. Replay view changes reused the shared clock, so a newly selected player appeared halfway through the loop.

Validation

• 256 Python tests passed, including the player-switch clock regression
• frontend JavaScript syntax checks passed
• Python compile checks passed
• PowerShell 5.1 syntax checks passed
• Windows package validation passed from the source tree and from the generated ZIP
• generated ZIP contains Alpha 3 notes and all fixes, excludes media/ and Alpha 2 notes, and matches both SHA-256 files