chore(lint): vendor anti-slop oxlint plugin and add batched cleanup pipeline

Vendor the anti-slop Oxlint plugin at tools/oxlint/anti-slop and register it
in oxlint.config.ts, with Oxlint's own rule categories disabled so ESLint
stays the general-purpose linter.

Add scripts/anti-slop.mjs (bun run deslop) mirroring the React Doctor batch
interface: next-batch, check-batch, active, release, top, file. Batch handoff
directories now double as file claims shared across clones via
~/.openchamber/maintenance-claims, so concurrent maintenance batches from
either pipeline never select the same file.

Harden both scheduled maintenance flows: stop on a dirty worktree, stop on
NO BATCH AVAILABLE, validate per package instead of workspace-wide, and pin
react-doctor to 0.9.12. The anti-slop task command documents concrete
good and bad fixes and forbids laundering types to satisfy a rule.

tools/oxlint/anti-slop/rules/no-module-mocking.ts

@@ -0,0 +1,91 @@
+import { defineRule } from "@oxlint/plugins";
+
+import type { ESTree, Scope, SourceCode, Variable } from "@oxlint/plugins";
+
+const moduleMockMethods = new Set(["doMock", "mock", "unstable_mockModule"]);
+
+function resolveVariable(
+  sourceCode: SourceCode,
+  identifier: ESTree.IdentifierReference,
+): Variable | null {
+  let scope: Scope | null = sourceCode.getScope(identifier);
+  while (scope !== null) {
+    const variable = scope.set.get(identifier.name);
+    if (variable !== undefined) return variable;
+    scope = scope.upper;
+  }
+  return null;
+}
+
+function importedName(node: ESTree.Node): string | null {
+  if (node.type !== "ImportSpecifier") return null;
+  return node.imported.type === "Identifier" ? node.imported.name : node.imported.value;
+}
+
+function isTestFrameworkObject(
+  sourceCode: SourceCode,
+  expression: ESTree.Expression,
+): expression is ESTree.IdentifierReference {
+  if (expression.type !== "Identifier") return false;
+  if (
+    (expression.name === "vi" || expression.name === "jest") &&
+    sourceCode.isGlobalReference(expression)
+  ) {
+    return true;
+  }
+
+  const variable = resolveVariable(sourceCode, expression);
+  if (variable === null || variable.defs.length === 0) {
+    return expression.name === "vi" || expression.name === "jest";
+  }
+  return variable.defs.some((definition) => {
+    if (definition.type !== "ImportBinding" || definition.parent?.type !== "ImportDeclaration") {
+      return false;
+    }
+    const source = definition.parent.source.value;
+    const name = importedName(definition.node);
+    return (source === "vitest" && name === "vi") || (source === "@jest/globals" && name === "jest");
+  });
+}
+
+function moduleMockCall(sourceCode: SourceCode, callee: ESTree.Expression): boolean {
+  if (!("property" in callee) || !("object" in callee) || !("computed" in callee)) return false;
+  if (!isTestFrameworkObject(sourceCode, callee.object)) return false;
+  const property = callee.property;
+  const method = callee.computed
+    ? property.type === "Literal" &&
+      (property.value === "doMock" ||
+        property.value === "mock" ||
+        property.value === "unstable_mockModule")
+      ? property.value
+      : null
+    : property.type === "Identifier"
+      ? property.name
+      : null;
+  return method !== null && moduleMockMethods.has(method);
+}
+
+/** Ban test framework module mocking in favor of real dependency seams. */
+export const noModuleMockingRule = defineRule({
+  meta: {
+    type: "problem",
+    docs: {
+      description:
+        "Disallow Vitest and Jest module mocking; tests must replace dependencies through real interfaces.",
+    },
+    messages: {
+      moduleMock:
+        "Replace module mocking with dependency injection through a real interface, service layer, or faithful test implementation.",
+    },
+  },
+  createOnce(context) {
+    return {
+      CallExpression(node) {
+        if (node.callee.type === "Super" || node.callee.type === "V8IntrinsicExpression") return;
+        if (moduleMockCall(context.sourceCode, node.callee)) {
+          context.report({ node, messageId: "moduleMock" });
+        }
+      },
+    };
+  },
+});