refactor: add root command options helper

[abhijeetnardele24-hash]

Summary

• add a getRootOpts() helper that walks up to the root Commander command
• replace fragile command.parent!.parent!.opts() access across the command layer
• add a focused unit test for nested and root command resolution

Validation

px vitest run tests/unit/context.test.ts

px tsc --noEmit

Note

pm run build compiles successfully on this machine until the repo's POSIX-only chmod step, which is unavailable in Windows PowerShell

[Copilot]

Pull request overview

This PR refactors the CLI command layer to safely access root (global) Commander options by introducing a getRootOpts() helper, replacing brittle command.parent!.parent!.opts() chains, and adding a unit test to validate root option resolution for nested commands.

Changes:

• Added getRootOpts(command) utility to traverse the Commander parent chain and return root CommandOptions.
• Replaced command.parent!.parent!.opts() usages across multiple commands with getRootOpts(command) (and hoisted into a local rootOpts where used multiple times).
• Added unit tests covering nested-command and root-command behavior for getRootOpts().

Reviewed changes

Copilot reviewed 12 out of 12 changed files in this pull request and generated no comments.

Show a summary per file

File	Description
tests/unit/context.test.ts	Adds focused unit tests for resolving root options from nested and root commands.
src/utils/context.ts	Introduces getRootOpts() helper to retrieve root Commander options.
src/commands/users.ts	Uses getRootOpts(command) when creating LinearService.
src/commands/teams.ts	Uses getRootOpts(command) when creating LinearService.
src/commands/projects.ts	Uses getRootOpts(command) when creating LinearService.
src/commands/project-milestones.ts	Hoists rootOpts and reuses it for GraphQL + Linear services.
src/commands/labels.ts	Uses getRootOpts(command) when creating LinearService.
src/commands/issues.ts	Hoists rootOpts per action and reuses it for GraphQL + Linear services.
src/commands/embeds.ts	Uses getRootOpts(command) when retrieving API token.
src/commands/documents.ts	Uses getRootOpts(command) to build services consistently across actions.
src/commands/cycles.ts	Uses getRootOpts(command) when creating LinearService.
src/commands/comments.ts	Uses getRootOpts(command) when creating LinearService.

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[iamfj]

Will be fixed in #89