Bump version to 0.2.1

AGENTS.md

@@ -58,7 +58,7 @@ from __future__ import annotations
 
 import sys
 from pathlib import Path
-from typing import Annotated, Optional
+from typing import Annotated
 
 import typer
 from rich.console import Console
@@ -152,6 +152,12 @@ When adding new file types:
 - `json` → use `rich.json.JSON` with fallback to `Syntax`
 - All other types → use `rich.syntax.Syntax`
 
+### Pager Behavior
+The pager prefers `less -R --mouse` when available (version 543+) for mouse scrolling. Falls back to Rich's `SystemPager` otherwise.
+
+### Version Sync
+Version metadata must stay in sync between `pyproject.toml` and `src/rp/__init__.py`.
+
 ## Project Structure
 ```
 rich-viewer/
@@ -174,7 +180,7 @@ rich-viewer/
 - `rich>=13.0` — Terminal rendering (Markdown, JSON, Syntax)
 - `typer>=0.12` — CLI framework
 
-Both are runtime dependencies. No dev dependencies are currently specified.
+Runtime dependencies. Dev dependencies: `ruff>=0.9`, `mypy>=1.14`.
 
 ## Git Conventions
 - Write clear, imperative commit messages