feat: Implement CLI and TUI for Fountain Pen Tracker

- Added CLI functionality for adding, editing, viewing, and deleting fountain pens.
- Introduced TUI using Textual for a more interactive experience.
- Created Pen and PenTracker classes to manage pen data and CSV storage.
- Implemented input validation for date fields.
- Added export functionality to JSON format.
- Updated project version to 0.2.0.
- Added unit tests for PenTracker functionality.

src/pen_tracker.egg-info/PKG-INFO

@@ -1,6 +1,6 @@
 Metadata-Version: 2.4
 Name: pen-tracker
-Version: 0.1.2
+Version: 0.2.0
 Summary: A fountain pen collection tracker.
 Author-email: Don Harper <don@donharper.org>
 Requires-Python: >=3.8
@@ -8,3 +8,45 @@ Description-Content-Type: text/markdown
 License-File: LICENSE
 Requires-Dist: textual
 Dynamic: license-file
+
+# Pen Tracker
+
+A simple fountain pen collection tracker.
+
+## Installation
+
+```bash
+pip install .
+```
+
+## Usage
+
+### CLI
+
+Interactive mode:
+```bash
+pen-tracker
+```
+
+Command-line mode:
+```bash
+pen-tracker add --make "Pilot" --model "Metropolitan" --nib "F"
+pen-tracker list
+pen-tracker export --output my_pens.json
+```
+
+### TUI
+
+```bash
+pen-tui
+```
+
+## Features
+
+- Track fountain pens with details like make, model, nib, ink, etc.
+- CLI interface with interactive and command-line modes
+- TUI interface using Textual
+- Data stored in CSV format
+- Export to JSON
+- Input validation for dates
+- Configurable CSV path via PEN_TRACKER_CSV environment variable

src/pen_tracker.egg-info/SOURCES.txt

@@ -10,4 +10,5 @@ src/pen_tracker.egg-info/SOURCES.txt
 src/pen_tracker.egg-info/dependency_links.txt
 src/pen_tracker.egg-info/entry_points.txt
 src/pen_tracker.egg-info/requires.txt
-src/pen_tracker.egg-info/top_level.txt
+src/pen_tracker.egg-info/top_level.txt
+tests/test_engine.py