fix fastmcp-python template and rename tool name to avoid collision

[xytian315]

Description

fix fastmcp-python template and rename tool name to avoid collision with remote mcp server.
Prefix example tools to avoid collisions. echo and sum collide with common reference MCP servers (@modelcontextprotocol/server-everything)

Change Type

/kind fix

Changelog

NONE

Additional Notes

[Copilot]

Pull request overview

Adjusts the FastMCP Python template to avoid common tool-name collisions in multi-server setups and to improve HTTP transport behavior around /mcp routing.

Changes:

• Renames example tools to example_echo / example_sum to reduce collisions with common reference MCP servers.
• Updates the echo tool’s config lookup key to match the new tool name.
• Changes HTTP startup to build an ASGI app and run Uvicorn directly, attempting to avoid Starlette’s trailing-slash redirect behavior.

Reviewed changes

Copilot reviewed 3 out of 3 changed files in this pull request and generated 4 comments.

File	Description
internal/cli/frameworks/builtin/fastmcp-python/templates/src/tools/sum.py.tmpl	Renames the example sum tool to example_sum and updates docstring rationale.
internal/cli/frameworks/builtin/fastmcp-python/templates/src/tools/echo.py.tmpl	Renames the example echo tool to example_echo and updates tool-config lookup key.
internal/cli/frameworks/builtin/fastmcp-python/templates/src/core/server.py.tmpl	Switches HTTP mode to http_app() + uvicorn.run() and disables redirect slashes.