fix: add 'test' script to backend/package.json (missing in PRs #106, #107, #110, #111, #112, #113)

[bmersereau]

Problem

PRs #106, #107, #110, #111, #112, and #113 each add vitest as a devDependency in backend/package.json and add a backend/vitest.config.ts, but none of them add a "test" script to the scripts block.

As a result, running npm test --prefix backend (or any CI step that calls npm test) silently fails with "missing script: test" on all six of those branches. Only PRs #108 and #109 correctly add the test script.

Fix required

In backend/package.json, the scripts block needs:

"test": "vitest run"

This should be added to all PRs that introduce vitest but lack the script (#106, #107, #110, #111, #112, #113) before merge, or landed as a follow-up immediately after they merge.

Affected PRs

• fix: throw on missing env vars in backend createServerSupabase() #106 (fix/97)
• fix: remove SUPABASE_SECRET_KEY fallback from encryptionKey() #107 (fix/98)
• fix: paginate GET /chat (limit + before cursor) #110 (fix/105)
• fix: cap POST /download-zip at 50 documents #111 (fix/99)
• fix: 3-minute timeout on SSE LLM streams #112 (fix/100)
• fix: migration to convert user_id text → uuid with FK to auth.users #113 (fix/104)

[bmersereau]

Fixed across all affected branches. Each branch now has "test": "vitest run" in backend/package.json. Tracked by: PR #106, #107, #108, #109, #110, #111, #112, #113 — will auto-close when the first of these merges.