Id whitelist (#15586)

* id whitelist

* hbb_common

* Update flutter/lib/common/widgets/dialog.dart

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* support wss:// for web client

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* fix: handle ID copying separately and remove whitelist logs

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* fix en translation

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* fix: check switch-side ID whitelist after login initialization

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* track pending 2FA challenge state

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* support Unicode IDs in whitelist settings

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* refactor: unify client ID resolution

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Co-authored-by: 21pages <sunboeasy@gmail.com>

AGENTS.md

@@ -84,3 +84,9 @@ Then translate that source into the file's target language (infer the language f
 * Preserve placeholders (`{}`) and escape sequences (`\n`, `\"`) exactly as in the source.
 * Do not translate brand or technical tokens: `RustDesk`, `Socks5`, `TLS`, `UAC`, `Wayland`, `X11`, `TCP`, `UDP`, `2FA`, `RDP`, `D3D`, etc.
 * Copy URL values (e.g. `doc_*` keys) verbatim from `en.rs`.
+
+### Adding new keys (feature work)
+
+* New English-text keys use sentence case, not Title Case: `Use ID whitelisting`, **not** `Use ID Whitelisting`. Acronyms (ID, IP, 2FA…) stay uppercase. Legacy Title-Case keys (e.g. `Use IP Whitelisting`) stay as-is — do not rename them.
+* Since the key itself is the English display text, a sentence-case key usually needs **no** `en.rs` entry; add one only when the display text must differ from the key (e.g. `*_tip` keys).
+* Append each new key to `template.rs` (with `""`) and to every `src/lang/*.rs` file (translated, or `""` if unsure), at the end of the list.