fix(tuikit): reset attrs on exit

[LoricAndre]

Checklist

check the box if it is not applicable to your changes

• I have updated the README with the necessary documentation
• I have added unit tests
• I have added end-to-end tests
• I have linked all related issues or PRs

Description of the changes

[Copilot]

Pull Request Overview

This PR ensures terminal attributes are reset on exit in the TUI backend and adds coverage through an ANSI-focused end-to-end test, along with a new example for skim.

• Reset terminal attributes after exiting TermLock to avoid leftover styling.
• Add reset_after_exit_height e2e test and extend TmuxController to capture ANSI output with a configurable timeout.
• Introduce a default.rs example demonstrating basic skim usage.

Reviewed Changes

Copilot reviewed 4 out of 4 changed files in this pull request and generated 2 comments.

File	Description
skim/examples/default.rs	New CLI example illustrating basic skim usage
skim-tuikit/src/term.rs	Added output.reset_attributes() after flushing on exit
e2e/tests/ansi.rs	New e2e test to verify ANSI attribute reset after exit
e2e/src/lib.rs	Defined TIMEOUT, refactored wait, and added ANSI capture

Comments suppressed due to low confidence (3)

e2e/src/lib.rs:17

• Consider renaming TIMEOUT to TIMEOUT_SECS (or similar) to explicitly convey that this constant represents seconds, improving clarity when it's used in timing calculations.

const TIMEOUT: usize = 30; // seconds

e2e/tests/ansi.rs:21

• This assertion only checks the foreground reset. To fully cover reset_attributes(), consider also verifying that the background and other style attributes are cleared (e.g., check for \u{1b}[49m).

assert!(lines[1].contains("\u{1b}[39m2") || lines[1].contains("\u{1b}[0m2"));

skim/examples/default.rs:1

• In Rust 2018 edition and later, extern crate skim; is redundant—consider removing it to align with modern conventions.

extern crate skim;