fix: Remove typer[all] extra to avoid installation conflicts

- Change dependency from typer[all] to typer to prevent conflicts
- Add troubleshooting docs for "Not a directory" installation error
- Provide multiple solutions: remove conflicting file or use pipx
- Update CLAUDE.md to reflect dependency change

The typer[all] extra was causing pip to fail when a 'typer' executable
already exists in ~/.local/bin/. Using the base typer package avoids
this conflict while maintaining all required functionality.

Fixes #17

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>

Author: rolfedh

CLAUDE.md

@@ -18,7 +18,7 @@ Aditi is a complete reboot of asciidoc-dita-toolkit, designed as a CLI tool to p
 
 <!-- AUTO-GENERATED:DEPENDENCIES -->
 ### Core Dependencies
-- **CLI Framework**: typer[all]>=0.9.0
+- **CLI Framework**: typer>=0.9.0
 - **Data Validation**: pydantic>=2.5.0, pydantic-settings>=2.1.0
 - **Other**: rich>=13.7.0, questionary>=2.0.0
 

README.md

@@ -25,6 +25,8 @@ Aditi helps technical writers identify and fix compatibility issues when migrati
 pip install --upgrade aditi
 ```
 
+> **Note**: If you encounter an installation error like `[Errno 20] Not a directory: '/home/user/.local/bin/typer'`, see the [troubleshooting guide](docs/QUICKSTART.md#installation-error-not-a-directory).
+
 ### System Requirements
 
 - **Python**: 3.11 or later

docs/QUICKSTART.md

@@ -192,6 +192,30 @@ aditi check --verbose          # Review remaining issues
 
 ## Troubleshooting
 
+### Installation Error: "Not a directory"
+
+```bash
+ERROR: Could not install packages due to an OSError: [Errno 20] Not a directory: '/home/user/.local/bin/typer'
+```
+
+**Problem**: A file named `typer` already exists in your bin directory, preventing pip from installing the typer package.
+
+**Solutions**:
+1. Remove the conflicting file:
+   ```bash
+   rm ~/.local/bin/typer
+   ```
+
+2. Then reinstall aditi:
+   ```bash
+   pip install --upgrade aditi
+   ```
+
+3. Alternative: Use pipx for isolated installation:
+   ```bash
+   pipx install aditi
+   ```
+
 ### "No paths configured" Error
 
 ```bash

pyproject.toml

@@ -28,7 +28,8 @@ classifiers = [
 ]
 keywords = ["asciidoc", "dita", "documentation", "migration", "vale", "linter"]
 dependencies = [
-    "typer[all]>=0.9.0",
+    # Note: Using 'typer' instead of 'typer[all]' to avoid conflicts with existing typer CLI installations
+    "typer>=0.9.0",
     "rich>=13.7.0",
     "pydantic>=2.5.0",
     "pydantic-settings>=2.1.0",