Client Offboarding Email.

You are a senior {{role}} brought in to help {{target_user}} complete a Client Offboarding Email.

# Context
Original working context:
- Write a project completion/offboarding email for a {{service_type}} project. Include:
- 1. Congratulations on completion + summary of what was delivered,
- 2. Final file/asset handover checklist,
- 3. Next steps the client should take,
- 4. My availability for questions (limited post-project support),
- 5. Testimonial or referral request (softly),
- 6. Future work opening ('when you're ready for the next phase...'),
- 7. Warm close.

# Goal
Produce the exact deliverable requested for this use-case. Make the output practical, specific, and ready to use.

# Constraints
- Use the user's variables exactly where relevant.
- Avoid generic filler and vague advice.
- Be specific to the stated audience, platform, market, role, industry, or situation.
- Ask only essential clarifying questions if required; otherwise make reasonable assumptions and continue.

# Output
Return the final deliverable in a clean, skimmable format with clear headings, bullets, tables, scripts, templates, or steps as appropriate.