feat(statusline): robust example statusline script with workspace, dual quotas, and tasks

[AndrewMason7]

This PR improves the statusline example script (examples/statusline/statusline.sh) to make it robust, feature-rich, and secure.

Changes Made

1. Critical Bug Fixes:

   • Startup Crash Fix: Resolved a POSIX command substitution newline stripping bug that caused the default script to crash with exit status 1 when set -e was active.
   • Crash-Resistant Sanitization: Added defensive type checking ([[ =~ ^[0-9]+$ ]]) so that empty, string, or corrupted payload fields from the CLI don't cause Bash arithmetic or comparison syntax errors.
   • Security/Robustness: Added escaping for backslashes in user-controlled strings (like branch names, model names, or directory paths) to prevent ANSI escape sequence injection.

2. Feature Additions:

   • Workspace Directory Badge: Added the 📂 workspace name badge so developers know their active context.
   • Dual Quotas & Reset Timeframes: Extracts and displays both the 5-hour and weekly quotas with exact reset times (e.g., 5h: 54% (3h 45m) ╱ w: 23% (1d 17h)).
   • Active Tasks Highlighting: Highlights active background tasks in bold cyan to grab the user's attention.

3. Aesthetics & Opacity Adaptability:

   • Native Opacity & Text Blending: Removed hardcoded foreground color codes (like \033[97m bright white) for numbers and labels. They now use standard ANSI Bold (\033[1m) and Dim (\033[2m) attributes so they natively inherit the terminal's default foreground color and respect any configured background opacity/transparency.

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[DIDOUOUGHA]

we need context status line

[AndrewMason7]

we need context status line

can you please explain more?