fix: verify desktop build with cargo

docs/mvp-verification.md

@@ -51,12 +51,20 @@ Set-Location ../desktop
 npm run build
 ```
 
-Expected: Tauri desktop bundle builds when Rust/Cargo is installed and the stable Rust toolchain is complete.
+Expected: the Tauri desktop executable builds when Rust/Cargo is installed and the stable Rust toolchain is complete.
+
+Installer packaging is a separate step:
+
+```powershell
+Set-Location apps/desktop
+npm run bundle
+```
 
 Current machine status:
-- `rustup` was installed through winget.
-- The latest desktop build attempt fails before project compilation because `cargo` is not available on PATH: `program not found`.
-- Desktop verification remains blocked until Rust/Cargo is installed and visible to the shell. Then run `npm run build` from `apps/desktop`.
+- Cargo and rustc are installed under `%USERPROFILE%\.cargo\bin`.
+- If the current shell does not see Cargo yet, prepend `%USERPROFILE%\.cargo\bin` to `PATH` or open a new terminal.
+- `npx tauri build --no-bundle --verbose` passes and produces `apps/desktop/src-tauri/target/release/senlinai_workbench.exe`.
+- Full installer bundling through `npm run bundle` currently times out in the Tauri CLI bundling stage on this machine before producing `target/release/bundle` artifacts.
 
 ## Latest Audit Verification
 
@@ -67,7 +75,8 @@ Last audited: 2026-07-18.
 - `apps/web`: `npm test -- --run` passed.
 - `apps/web`: `npm run build` passed.
 - `apps/web`: `npx playwright test` passed.
-- `apps/desktop`: `npm run build` blocked by missing Cargo/Rust toolchain on the current machine.
+- `apps/desktop`: `npx tauri build --no-bundle --verbose` passed and produced the desktop executable.
+- `apps/desktop`: installer packaging is still blocked by Tauri CLI bundling timeout on the current machine.
 
 Audit fixes included: