feat: Add ROS Parameters YAML support

[zhexuany]

Issue Description

ROS uses YAML files for parameter storage (rosparam). Robocodec does not currently support reading/writing ROS parameter files.

Proposed Solution

Add support for ROS parameter YAML files as a readable/writable format.

Requirements

• Add param_parser.rs module in src/schema/parser/
• Parse ROS1 parameter YAML format
• Parse ROS2 parameter YAML format
• Support nested parameter names (e.g., "robot_radius")
• Support parameter types: bool, int, float, string, list, dict
• Add unit tests
• Add CLI commands for parameter inspection

Acceptance Criteria

1. Can parse standard ROS parameter YAML files
2. Correctly handles all parameter types
3. Preserves parameter structure
4. Can write parameters back to YAML format

References

• ROS Parameters: https://wiki.ros.org/Parameter%20Server
• ROS2 Parameters: https://docs.ros.org/en/humble/How-To-Guides/Parameters-YAML-file-migration.html

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Priority: P2 - ROS ecosystem completeness
Estimated effort: Low