adding correct insiders name

[tonytrg]

Summary

Why

Alignment of names

What changed

MCP impact

• No tool or API changes
• Tool schema or behavior changed
• New tool added

Prompts tested (tool changes only)

Security / limits

• No security or limits impact
• Auth / permissions considered
• Data exposure, filtering, or token/size limits considered

Tool renaming

• I am renaming tools as part of this PR (e.g. a part of a consolidation effort)
  • I have added the new tool aliases in deprecated_tool_aliases.go
• I am not renaming tools as part of this PR

Note: if you're renaming tools, you must add the tool aliases. For more information on how to do so, please refer to the official docs.

Lint & tests

• Linted locally with ./script/lint
• Tested locally with ./script/test

Docs

• Not needed
• Updated (README / docs / examples)

[Copilot]

Pull request overview

This PR fixes a naming inconsistency by renaming InsiderMode to InsidersMode throughout the codebase to align with the actual feature name "insiders mode" and its associated environment variable GITHUB_INSIDERS_MODE and flag --insiders-mode.

Changes:

• Renamed the InsiderMode field to InsidersMode in the FeatureFlags struct and all configuration structs
• Updated all references from insider-mode to insiders-mode in flags, viper bindings, and test helpers
• Updated documentation in README.md and docs/remote-server.md to reflect the corrected naming

Reviewed changes

Copilot reviewed 8 out of 8 changed files in this pull request and generated no comments.

Show a summary per file

File	Description
pkg/github/feature_flags.go	Renamed struct field from InsiderMode to InsidersMode
pkg/github/server_test.go	Updated test helper to use insiders-mode key
pkg/github/feature_flags_test.go	Updated test code and variable names to use InsidersMode
internal/ghmcp/server.go	Updated struct fields, comments, and usage of InsidersMode in both MCPServerConfig and StdioServerConfig
internal/ghmcp/server_test.go	Updated test configuration to use InsidersMode
cmd/github-mcp-server/main.go	Updated CLI flag from --insider-mode to --insiders-mode and all viper bindings
README.md	Updated documentation examples to use --insiders-mode flag and GITHUB_INSIDERS_MODE environment variable
docs/remote-server.md	Updated documentation reference from GITHUB_INSIDER_MODE to GITHUB_INSIDERS_MODE and --insider-mode to --insiders-mode