🔍 feat(maniphest): Enhance task search with free-text and flexible filtering

- Add support for free-text search in task titles and descriptions
- Make project/tag filtering optional and more flexible
- Require at least one search filter to prevent overly broad searches
- Update CLI usage, help text, and documentation
- Add validation to prevent empty searches
- Improve error messaging for search scenarios

Author: Timpan4

README.md

@@ -70,7 +70,8 @@ echo "PHAB_URL: https://yourserver.com/api/" >> ~/Library/Application\ Support/p
 ```bash
 phabfive passphrase K123
 phabfive paste list
-phabfive maniphest search myproject
+phabfive maniphest search "migration tasks" --tag myproject
+phabfive maniphest search --tag myproject --updated-after=7
 ```
 
 ## Documentation