fix(mcp): report source upload env in config

[JSONbored]

Motivation

• The config command always reported source upload as disabled, which contradicted other checks that treat GITTENSORY_UPLOAD_SOURCE as an enabled-but-unsupported setting and caused confusing diagnostics.
• The misreporting could mislead users auditing local privacy configuration even though the code still fails closed for actual uploads.

Description

• Add sourceUploadState() to derive the source-upload posture from GITTENSORY_UPLOAD_SOURCE and return { default, enabled, source, supported } instead of a hardcoded disabled object.
• Use sourceUploadState() in configCommand payload so JSON output reflects the env var and its source.
• Update human-readable config output to print a warning-style message when the env var enables the unsupported behavior while preserving the disabled message when unset.
• Update test/unit/mcp-cli.test.ts to expect the expanded sourceUpload shape and add a unit test that verifies enabled-but-unsupported reporting, and update the package README to document that config reports GITTENSORY_UPLOAD_SOURCE posture.

Testing

• Ran the updated unit test file with npm test -- test/unit/mcp-cli.test.ts, and all tests in that file passed (48 passed).
• Ran type checking with npm run typecheck, which succeeded.
• Verified formatting/lint checks with git diff --check, which reported no issues.

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Codex Task

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Status	Name	Latest Commit	Preview URL	Updated (UTC)
✅ Deployment successful! View logs	gittensory-ui	468da15	Commit Preview URL Branch Preview URL	Jun 06 2026, 10:39 AM

[gittensory]

Note

Gittensory Gate skipped

PR closed before full evaluation. No late first comment was created.

Signal	Result	Evidence	Action
Gate result	⚠️ Skipped	#441 is no longer open.	No action.

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