Initial release of the "joke-teller" skill:

- Introduces a humor/casual conversation skill that tells jokes based on user requests or context.
- Supports multiple joke types: programmer jokes, cold jokes, puns, life anecdotes, and workplace humor.
- Selects jokes contextually; adapts to user mood and conversation.
- Ensures jokes are concise, appropriate, and non-offensive.
- Formats jokes for clarity and emphasis using quote styling (`>`).