P1-M5-T3: MCP Inspector examples

[Rihoj]

Task ID: P1-M5-T3

Add examples and sample calls for MCP Inspector with test_mcp.sh and documentation.

Acceptance criteria:

• Example scripts successfully exercise a sample tool/resource using stdio transport locally

Estimate: 0.5d
Labels:["docs","examples","phase:1","milestone:P1-M5"]

Dependencies:

• P1-M1-T3: StdIO transport runner #3
• P1-M3-T3: Resources export (resources/resources.go) #14

Project: https://github.com/orgs/rayprogramming/projects/2