Fix Linux main window controls

[H-Chris233]

User description

Summary

• add Linux-specific Tauri config for the main window
• disable main-window transparency on Linux while keeping native decorations
• keep capsule and QA window definitions in the Linux override because Tauri merge patch replaces the windows array

Closes #517

Validation

• npm --prefix "openless-all/app" run build
• cargo check --manifest-path "openless-all/app/src-tauri/Cargo.toml"
• git diff --check HEAD~1 HEAD

Notes

• Needs Ubuntu real-desktop validation for native window-control hit testing; current environment has no DISPLAY/WAYLAND_DISPLAY.

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PR Type

Bug fix

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Description

• Add Linux-specific Tauri window config

• Disable main-window transparency on Ubuntu

• Keep capsule and QA windows intact

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Diagram Walkthrough

flowchart LR
  A["Linux Tauri config"] -- "defines" --> B["main window"]
  A -- "includes" --> C["capsule window"]
  A -- "includes" --> D["QA window"]
  B -- "transparent: false, decorations: true" --> E["clickable window controls"]

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File Walkthrough

	Relevant files
Configuration changes	tauri.linux.conf.json Add Linux window configuration override                                    openless-all/app/src-tauri/tauri.linux.conf.json Defines a Linux-only Tauri app.windows override Sets the main window to non-transparent with native decorations Preserves the capsule and qa window definitions in the override +55/-0

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[github-actions]

PR Reviewer Guide 🔍

Here are some key observations to aid the review process:

🎫 Ticket compliance analysis ✅ 517 - PR Code Verified Compliant requirements: Linux-specific Tauri window config added. Main window transparency disabled on Linux while keeping decorations enabled. Capsule and QA window definitions retained in the Linux override. Requires further human verification: Verify on a real Ubuntu desktop that the native minimize/maximize/close buttons are clickable without any resize workaround.

⏱️ Estimated effort to review: 2 🔵🔵⚪⚪⚪

🧪 No relevant tests

🔒 No security concerns identified

⚡ No major issues detected