feat(logging): add YAML logging for original prompts in generate_prom…

…pt_with_hash

- Implement YAML-based logging in the generate_prompt_with_hash function
- Logs original prompts with their date to a YAML file instead of plain text
- Appends new entries to the existing YAML file, if present
- Utilizes PyYAML to manage serialization of log data
- Maintains human-readable format for prompts, ensuring multiline handling

pyproject.toml

@@ -1,6 +1,6 @@
 [tool.poetry]
 name = "storycraftr"
-version = "0.6.0-alpha2"
+version = "0.6.1-alpha2"
 description = "A CLI tool for writing books using OpenAI."
 authors = ["Tu nombre <[email protected]>"]
 license = "MIT"