feat: intergrate vite_task_plan and vite_task_graph in vite_task::session

[branchseer]

feat: integrate vite_task_plan and vite_task_graph

This PR integrates the task planning and execution functionality from vite_task_plan and vite_task_graph into the main vite_task crate. Key changes include:

• Added a new Session type in vite_task that manages task graph loading and provides methods to plan and execute tasks
• Implemented CLI argument parsing with clap for task commands
• Added async-trait for better async interface design
• Created a path redaction feature in vite_path for stable serialization of absolute paths
• Moved snapshot tests from vite_task_graph to vite_task
• Removed the standalone vite_task_bin crate in favor of a binary in vite_task
• Added proper workspace node_modules/.bin path handling for task execution

The PR establishes a cleaner architecture where vite_task serves as the main entry point for task planning and execution, while vite_task_graph and vite_task_plan provide the underlying functionality.

[branchseer]

• feat: intergrate vite_task_plan and vite_task_graph in vite_task::session #64 👈 (View in Graphite)
• refactor: remove lifetime and cwd from WorkspaceRoot #62
• main

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