v0.4.9: CLI feedback flow, think tool display, structured questions

CLI Improvements:
- Unified Review Dialog with file tabs, structured questions, and text input
- Provide Feedback flow for plan rejection with feedback sent to agent
- Think tool displays thought preview with 💭 icon
- Notification messages rendered as Markdown
- Backend version exposed in _ping RPC

Task Workflow:
- Structured questions in notify_user (single/multiple choice, text input)
- Questions auto-interrupt to wait for user answers

Agent & Team:
- Improved team delegation prompt
- FastMCP 3.x namespace API compatibility
- New agentic general prompt template

Bug Fixes:
- Show "Approved" instead of "0 answer(s)" for file-only reviews

chore: bump version to 0.4.8

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Bump version to 0.4.7

v0.4.6: Add key removal to setup wizard and /keys command

- pantheon setup: prefix with 'd' to delete keys (e.g. d0, d1)
- /keys rm <number|name>: remove provider keys or custom endpoint
- Bump version to 0.4.6

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Add universal LLM_API_BASE/LLM_API_KEY for third-party proxy support

- Add LLM_API_BASE and LLM_API_KEY as universal fallback for all providers
- When LLM_API_BASE is active, prefer LLM_API_KEY over provider-specific keys
- Add Custom API Endpoint option [0] to setup wizard and /keys command
- Add `pantheon setup` CLI command to launch wizard on demand
- Update fallback model to openai/gpt-5.2
- Document custom API endpoint in installation, models, and settings docs
- Bump version to 0.4.5

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Bump to v0.4.4: fix nats-ws.conf missing in pip install

Include nats-ws.conf as package data so `pantheon ui --auto-start-nats`
works in pip-installed environments. Search package dir first, then
fall back to project root for dev mode.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Merge pull request #28 from HendricksJudy/main

comprehensive support for SCFM (Single Cell Foundation Model) workflows in the CLI and REPL, enabling foundation model-based single-cell analysis

Updated version