fix(integrations): add zed to discovery catalog.json

[jawwad-ali]

Description

integrations/catalog.json is the discovery manifest for Spec Kit integrations. The zed integration is registered in INTEGRATION_REGISTRY, registrar-aligned, and covered by the registry tests — but it is the only one of the 34 registered integrations missing from the catalog:

set(INTEGRATION_REGISTRY) - {"generic"} - set(catalog["integrations"])  # -> {'zed'}

So zed is undiscoverable through the catalog while every sibling (including the other skills-based editors) is listed.

Fix

• Add the "zed" entry to integrations/catalog.json, mirroring the sibling skills entries (e.g. agy, lingma) — name: "Zed", description: "Zed editor skills-based integration", tags: ["ide", "skills"], consistent with the module's own "Zed editor integration — skills-based agent" description.
• Add a TestCatalogParity regression test asserting every registered integration (except the generic fallback) appears in the catalog, so this can't silently drift again.

Testing

• New test_every_registered_integration_is_in_catalog: fails before (missing: ['zed'], verified by stashing the catalog change), passes after.
• Full tests/integrations/test_registry.py passes (434 tests); uvx ruff check clean; catalog.json validated as well-formed JSON.

AI Disclosure

• I did use AI assistance (describe below)

Found and fixed with Claude Code (Claude Opus 4.8) under my direction. AI computed the registry-vs-catalog set difference; I confirmed zed was the sole omission, matched the sibling entry shape, proved fail-before via stash, and reviewed the diff before submitting.

[Copilot]

Pull request overview

This pull request fixes an integration discoverability gap by ensuring the zed integration is included in the Spec Kit discovery manifest (integrations/catalog.json) and adds a regression test to prevent future registry-vs-catalog drift.

Changes:

• Added a zed entry to integrations/catalog.json, consistent with other IDE skills-based integrations.
• Added a TestCatalogParity test that asserts every registered integration (except the generic fallback) is present in the catalog.

Show a summary per file

File	Description
tests/integrations/test_registry.py	Adds a regression test to enforce catalog parity with INTEGRATION_REGISTRY (excluding generic).
integrations/catalog.json	Adds the missing zed integration entry so it becomes discoverable via the catalog.

Review details

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• Files reviewed: 2/2 changed files
• Comments generated: 0
• Review effort level: Low

[mnriem]

Thank you!