test: adopt @cloudflare/vitest-pool-workers, delete SQL-parser mock

.github/workflows/ci.yml

@@ -20,7 +20,7 @@ jobs:
       - name: Setup Node.js
         uses: actions/setup-node@v4
         with:
-          node-version: '20'
+          node-version: '22'
 
       - name: Install dependencies
         run: npm install --legacy-peer-deps

.github/workflows/deploy.yml

@@ -21,7 +21,7 @@ jobs:
       - name: Setup Node.js
         uses: actions/setup-node@v4
         with:
-          node-version: '20'
+          node-version: '22'
 
       - name: Install dependencies
         run: npm install --legacy-peer-deps

.github/workflows/harness.yml

@@ -34,7 +34,7 @@ jobs:
       - uses: actions/checkout@v4
       - uses: actions/setup-node@v4
         with:
-          node-version: '20'
+          node-version: '22'
       - name: npm audit --audit-level=high
         # Fails on a high-or-critical advisory. Production-only because we
         # don't act on devDep advisories (no runtime exposure).
@@ -48,7 +48,7 @@ jobs:
       - uses: actions/checkout@v4
       - uses: actions/setup-node@v4
         with:
-          node-version: '20'
+          node-version: '22'
       - name: Install dependencies
         run: npm install --legacy-peer-deps --no-audit --no-fund
       - name: Run knip

knip.json

@@ -1,7 +1,7 @@
 {
 	"$schema": "https://unpkg.com/knip@5/schema.json",
 	"entry": ["src/lib/components/SearchModal.svelte!"],
-	"ignoreDependencies": ["@cloudflare/workers-types"],
+	"ignoreDependencies": ["@cloudflare/workers-types", "cloudflare"],
 	"rules": {
 		"exports": "off",
 		"types": "off",

migrations/0002_add_alias.sql

@@ -2,9 +2,15 @@
 -- Created: 2024-02-01
 -- Note: SQLite doesn't support "IF NOT EXISTS" for ALTER TABLE ADD COLUMN
 -- This migration may fail if already applied - that's expected behavior
+--
+-- 2026 update: SQLite forbids `ADD COLUMN ... UNIQUE` (hosted D1 silently
+-- tolerated this in the past, local Miniflare D1 rejects it strictly per
+-- the SQLite spec). Replaced with the canonical pattern:
+-- ADD COLUMN (no constraint) + CREATE UNIQUE INDEX. Equivalent uniqueness
+-- guarantee, runs on both hosted and local D1. Safe to re-apply on prod:
+-- this migration is already recorded in d1_migrations, so it will not
+-- re-execute against the hosted DB.
 
--- Add alias column (will fail if exists - that's OK)
-ALTER TABLE configs ADD COLUMN alias TEXT UNIQUE;
+ALTER TABLE configs ADD COLUMN alias TEXT;
 
--- Create index (idempotent)
-CREATE INDEX IF NOT EXISTS idx_configs_alias ON configs(alias);
+CREATE UNIQUE INDEX IF NOT EXISTS idx_configs_alias_unique ON configs(alias);