merge: star-abyss canonical main + language persona chat workbench

正向合并修正：main（f8c8db4 星渊编号验证正版基座）为体，
并入实例1的语言人格频道真聊天（persona_language_channel 直连命令+API发现）、
执行手脚训练运行时、标准工作台双投影层（人类界面/执行界面）与公告版本中心。
版本 0.9.1。修正 2026-08-20 桌面 0.9.0 误从 8-17 旧基线构建的合并错误。

product-source/hololake-native-desktop/src-tauri/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "hololake-native-desktop"
-version = "0.5.0"
+version = "0.9.1"
 description = "HoloLake native desktop foundation"
 authors = ["HoloLake"]
 license = "AGPL-3.0-or-later"
@@ -38,7 +38,7 @@ url = "2"
 reqwest = { version = "0.13.2", default-features = false, features = ["cookies", "form", "json", "rustls", "stream"] }
 rust_xlsxwriter = "=0.64.2"
 zip = { version = "=0.6.6", default-features = false, features = ["deflate"] }
-tokio = { version = "1", features = ["time"] }
+tokio = { version = "1", features = ["io-util", "process", "time"] }
 futures-util = "0.3"
 minisign-verify = "0.2.5"
 qrcode = { version = "0.14", default-features = false, features = ["svg"] }
@@ -48,3 +48,4 @@ widestring = "1"
 
 [dev-dependencies]
 tempfile = "3"
+keyring = { version = "3.6.3", features = ["apple-native"] }