fix(slack): remove stale preview gate references

[TheodoreSpeaks]

Summary

• Remove stale Slack v2 preview-gate references after release
• Cover released Slack and unrevealed Table version resolution separately

Type of Change

• Bug fix

Testing

• 16 targeted Vitest tests
• Lint and block registry audit
• 36 repository audits

Checklist

• Code follows project style guidelines
• Self-reviewed my changes
• Tests added/updated and passing
• No new warnings introduced
• I confirm that I have read and agree to the terms outlined in the Contributor License Agreement (CLA)

[vercel]

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1 Skipped Deployment

Project	Deployment	Actions	Updated (UTC)
docs	Skipped		Aug 27, 2026 6:03pm

[greptile-apps]

Greptile Summary

This PR removes obsolete Slack preview-gate references now that Slack v2 is released and makes registry tests distinguish released Slack resolution from unrevealed Table fallback.

• Updates explanatory comments in the registry and service-account connection UI.
• Verifies unrevealed table_v2 falls back to table.
• Verifies released Slack resolves consistently to slack_v2.
• Generalizes the preview-successor fixture comment in copilot integration tests.

Confidence Score: 5/5

The PR appears safe to merge because it changes only explanatory comments and targeted test expectations that match the current registry visibility and version-resolution behavior.

Slack v2 is released and toolbar-visible, Table v2 remains preview-gated, and the updated tests deterministically assert those corresponding resolution paths without modifying production logic.

Important Files Changed

Filename	Overview
apps/sim/app/workspace/[workspaceId]/home/components/message-content/components/special-tags/special-tags.tsx	Rewords an inline comment to describe owning-block visibility rather than the obsolete Slack preview gate; runtime behavior is unchanged.
apps/sim/blocks/registry-lookup.test.ts	Replaces generic parity checks with deterministic assertions for unrevealed Table fallback and released Slack v2 resolution.
apps/sim/blocks/registry.ts	Updates documentation to use preview-gated Table v2 as the current example; registry logic is unchanged.
apps/sim/lib/copilot/integration-tools.test.ts	Generalizes fixture commentary without changing test setup or expectations.

_{Reviews (1): Last reviewed commit: "fix(slack): remove stale preview gate re..." | Re-trigger Greptile}

[cubic-dev-ai]

No issues found across 4 files

Confidence score: 5/5

• Automated review surfaced no issues in the provided summaries.
• No files require special attention.

_{Re-trigger cubic}