[WIP] Fix WebView2Loader.dll not found issue during launch

[Copilot]

Thanks for asking me to work on this. I will get started on it and keep this PR's description up to date as I form a plan and make progress.

Original prompt

Fix issue #43 in repository Finesssee/Win-CodexBar.

Issue: WebView2Loader.dll was not found
Link: #43

Observed behavior:

• After updating to version v0.23.2, launching codexbar.exe fails with a Windows system error saying WebView2Loader.dll was not found.
• The issue is reproducible with both the installer build and the portable build.
• It also reproduces after a clean installation.

Relevant repository context:

• AGENTS.md says the active desktop app is the Tauri shell in apps/desktop-tauri/, and when docs conflict, trust the Tauri desktop sources plus shared Rust sources.
• The installer packaging currently appears to include codexbar.exe and icon.ico, but not WebView2Loader.dll. In particular, rust/installer/codexbar.iss has:
  • Source: "{#TargetBinDir}\codexbar.exe"; DestDir: "{app}"; Flags: ignoreversion
  • Source: "..\icons\icon.ico"; DestDir: "{app}"; Flags: ignoreversion
  • no sidecar entry for WebView2Loader.dll
• The README currently lists the portable artifact as a single exe (codexbar-desktop-tauri.exe), which may also be omitting required runtime sidecars.

Requested outcome:

• Ensure release artifacts for the Windows Tauri desktop app include any required WebView2 runtime loader sidecar(s), especially WebView2Loader.dll, so the app launches correctly after install/update and in the portable distribution.
• Update the packaging/build/release flow in the most appropriate place(s) in this repo so both installer and portable distribution are fixed, not just local dev runs.
• If the correct fix is broader than a single DLL (for example, copying all required Tauri/WebView2 sidecars from the built output directory), implement the robust fix instead of a narrow hardcoded workaround.
• Update any relevant user-facing docs/release artifact descriptions if needed so the portable distribution is accurately described.

Constraints/guidance:

• Keep changes scoped to this packaging/runtime artifact problem.
• Prefer the active Tauri desktop sources and packaging flow over legacy/historical paths.
• Avoid adding unnecessary dependencies or unrelated refactors.
• Include tests or validation updates where practical, and document what was validated in the PR.

Please create a pull request with the fix.

The following is the prior conversation context from the user's chat exploration (may be truncated):

User: fix this

Assistant: I can fix it, but to actually make the change I need you to explicitly ask me to open a PR in the repo.

What I found:

• Issue WebView2Loader.dll was not found #43 is about WebView2Loader.dll missing in v0.23.2.
• The app is a Tauri desktop app, so this DLL is likely required at runtime.
• Your installer script currently includes codexbar.exe and icon.ico, but I don’t see WebView2Loader.dll being packaged in the Inno installer.
• The portable artifact listed in the README is just the .exe, which also strongly suggests the DLL sidecar is being omitted there too.

Most likely fix:

• Include WebView2Loader.dll alongside codexbar.exe in:
  • the installer package
  • the portable release artifact
• Verify the Tauri build output path for where that DLL is produced, then update packaging scripts accordingly.

If you want, reply with:

Open a PR to fix issue #43 in Finesssee/Win-CodexBar

and I’ll create it.

User: go

Assistant: I’m waiting for your response to the confirmation dialog so I can continue.

This pull request was created from Copilot chat.