fix(invariants): join package checks at startup

packages/util/retention/src/invariant.ts

@@ -12,24 +12,21 @@ export const name = 'retention-invariant'
 export const inject = ['invariants']
 
 /** Assert exact head-retention accounting after the budget is exceeded. */
-const install: InvariantInstaller = (ctx, fail) => {
-  ctx.effect(async () => {
-    const { ItemRetainer } = await import('./index.ts')
-    const retainer = new ItemRetainer<string>({ kind: 'head', maxItems: 2 })
-    retainer.push('first')
-    retainer.push('second')
-    retainer.push('third')
-    const result = retainer.finish()
-    assertInvariant(fail,
-      result.items.join(',') === 'first,second'
-        && result.seen === 3
-        && result.kept === 2
-        && result.truncated
-        && result.omitted.kind === 'exact'
-        && result.omitted.count === 1,
-      'head retention must keep the prefix and report exact seen, kept, and omitted counts')
-    return () => {}
-  }, 'retention: validate exact head accounting')
+const install: InvariantInstaller = async (_ctx, fail) => {
+  const { ItemRetainer } = await import('./index.ts')
+  const retainer = new ItemRetainer<string>({ kind: 'head', maxItems: 2 })
+  retainer.push('first')
+  retainer.push('second')
+  retainer.push('third')
+  const result = retainer.finish()
+  assertInvariant(fail,
+    result.items.join(',') === 'first,second'
+      && result.seen === 3
+      && result.kept === 2
+      && result.truncated
+      && result.omitted.kind === 'exact'
+      && result.omitted.count === 1,
+    'head retention must keep the prefix and report exact seen, kept, and omitted counts')
 }
 
 /**