feat(client): support service version ranges

[mattrobrob]

Issue for this PR

Closes #42010

Type of change

• Bug fix
• New feature
• Refactor / code improvement
• Documentation

What does this PR do?

Allows the existing version option in Service.discover() and Service.ensure() to accept npm semver ranges as well as exact values.

await Service.ensure({ version: ">=2.0.0 <3.0.0" })

Valid semver expressions are matched as ranges, including prereleases. Non-semver values such as local and test keep their existing exact-string behavior. Promise and Effect service clients use the same matcher.

How did you verify your code works?

• cd packages/client && bun test (57 passed)
• cd packages/client && bun run typecheck
• cd packages/client && bun run build
• Repository pre-push typecheck (32 packages passed)
• Prettier and git diff --check

Repository-wide lint still has one unrelated existing error in packages/session-ui/src/v2/components/prompt-input/index.tsx:163; targeted lint for the changed client files has zero errors.

Screenshots / recordings

Not a UI change.

Checklist

• I have tested my changes locally
• I have not included unrelated changes in this PR

[thdxr]

Tweaked this a bit to keep the client dependency-free: version can now be either the existing exact string or a compatibility predicate. That lets callers bring whatever range logic they need without us baking npm semver parsing into the client. I updated the tests/docs and pushed the change to this branch.

[thdxr]

Reviewed the service compatibility changes and follow-up updates. Looks good.