Remove remaining SDK telemetry code

[samuelstroschein]

Summary

• remove the remaining telemetry capture path from @inlang/sdk
• stop persisting SDK telemetry-related metadata in new projects and remove the telemetry setting from the SDK schema/docs
• remove the stale CLI appId caller and add a minor changeset for @inlang/sdk

Verification

• pnpm test in packages/sdk
• pnpm lint in packages/sdk
• pnpm test in packages/cli
• rg "posthog" packages/sdk docs/settings.md

---

Note

Medium Risk
Removes telemetry-related API surface (telemetry setting, appId parameter, env var) and deletes associated capture code/tests, which could impact downstream consumers relying on those fields.

Overview
Removes the SDK’s remaining telemetry functionality: deletes PostHog capture code/tests, stops emitting telemetry on project load, and stops writing telemetry-related Lix metadata during newProject().

Updates the project settings schema and docs to drop the telemetry setting, removes the CLI’s appId usage when loading projects, and adds a minor changeset for @inlang/sdk.

^{Written by Cursor Bugbot for commit 6e6ee7f. This will update automatically on new commits. Configure here.}

[changeset-bot]

🦋 Changeset detected

Latest commit: 6e6ee7f

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 7 packages

Name	Type
@inlang/sdk	Minor
@inlang/cli	Patch
@inlang/plugin-i18next	Patch
@inlang/plugin-m-function-matcher	Patch
@inlang/plugin-t-function-matcher	Patch
@inlang/rpc	Patch
@inlang/editor-component	Major

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