Simple interactive terminal user interface (without brick)

[memowe]

Replaces #2

[memowe]

TODO

• Show duration in current status
• Show session duration after clock out
• Completion for multiple tags in one line
  • Fix tests
• Completion should show all entries when input is empty
• Report integration

[memowe]

TODO

• Example in README

[Copilot]

Pull Request Overview

This PR introduces a simple interactive terminal user interface (TUI) for the time tracking tool, replacing the previous brick-based approach with haskeline for a lighter-weight solution.

Key Changes:

• Replaced the brick UI library with haskeline for terminal interactions
• Added a new TUI executable (t5) with interactive prompts for clocking in/out and viewing reports
• Enhanced the completion system with haskeline integration and case-insensitive matching

Reviewed Changes

Copilot reviewed 10 out of 10 changed files in this pull request and generated 3 comments.

Show a summary per file

File	Description
terminal-time-tracking-tool.cabal	Replaced brick dependency with haskeline and added new t5 executable
t4-tui/TUI.hs	New interactive TUI implementation using haskeline for user input and completion
lib/Completion.hs	Added haskeline integration functions and made completion matching case-insensitive
lib/T4/Report.hs	Extracted showDurMap function to format duration maps as strings
t4-commands/Commands.hs	Simplified report command logic and moved formatting to T4.Report module
lib/Util.hs	Added lastMaybe helper function for safe list operations
test/UtilSpec.hs	Added tests for the new lastMaybe function
test/T4/ReportSpec.hs	Added tests for showDurMap text report formatting
test/CompletionSpec.hs	Updated tests for case-insensitive matching and added haskeline completion tests
README.md	Added documentation for running the new t5 TUI

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