feat: Ignore json with comment

[ashphy]

Fixes #99

[Copilot]

Pull Request Overview

This PR adds support for JSON with comments (JSONC) by replacing the native JSON.parse() with the jsonc-parser library. This allows the application to handle JSON files that contain comments, which are normally invalid in standard JSON.

• Replaces JSON.parse() calls with jsonc-parser's parse() function
• Configures Monaco editor to allow comments and ignore trailing commas in JSON
• Adds jsonc-parser dependency to handle JSON with comments

Reviewed Changes

Copilot reviewed 3 out of 4 changed files in this pull request and generated no comments.

File	Description
src/hooks/use-jsonpath.ts	Replaces JSON.parse with jsonc-parser's parse function for session loading and document parsing
src/components/editor/json-editor.tsx	Configures Monaco editor to allow comments and trailing commas in JSON
package.json	Adds jsonc-parser dependency

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