feat: make webhooks and documents editable instead of delete-and-recreate

Both could only be created and deleted. For a webhook that is actively harmful:
recreating it issues a new signing secret, so the receiver that verifies the
X-ApiCore-Signature header against the old one starts rejecting every delivery
without anyone changing it on purpose.

Backend:
- New PATCH /webhooks/:id behind a new webhooks:update permission, covering the
  target URL, the event selection and the active flag - the last of which had
  no way to be set after creation at all, so a misbehaving receiver could only
  be deleted. The signing secret is deliberately left alone and stays out of
  the audit log.
- A changed webhook URL runs through the same assertPublicWebhookUrl SSRF check
  as a new one; without that the edit would have been a way around the guard
  create() applies. Covered by a test.
- New PATCH /documents/:id behind a new documents:update permission, for
  re-linking a document filed against the wrong record and correcting its
  display name. Re-linking validates the new target with the existing
  assertEntityExists; the stored file is untouched.

Frontend:
- New webhook edit dialog. The event labels and the toggle helper moved out of
  the create dialog into lib/webhooks/labels.ts so both use one copy.
- Documents can be renamed from the attachment card.

Re-linking a document to a different record has no UI yet: it needs a two-step
picker (colony, then inspection) that is not worth building unprompted.

Co-Authored-By: Claude Opus 5 (1M context) <[email protected]>

ApiCore-Backend/src/webhooks/webhooks.service.spec.ts

@@ -1,5 +1,5 @@
 import * as crypto from 'node:crypto';
-import { NotFoundException } from '@nestjs/common';
+import { BadRequestException, NotFoundException } from '@nestjs/common';
 import { WebhooksService } from './webhooks.service';
 import { PrismaService } from '../prisma/prisma.service';
 import { AuditLogService } from '../audit/audit-log.service';
@@ -11,6 +11,7 @@ describe('WebhooksService', () => {
       findMany: jest.Mock;
       findUnique: jest.Mock;
       create: jest.Mock;
+      update: jest.Mock;
       delete: jest.Mock;
     };
   };
@@ -23,6 +24,7 @@ describe('WebhooksService', () => {
         findMany: jest.fn().mockResolvedValue([]),
         findUnique: jest.fn(),
         create: jest.fn(),
+        update: jest.fn(),
         delete: jest.fn(),
       },
     };
@@ -117,4 +119,68 @@ describe('WebhooksService', () => {
       service.dispatch('colony.created', { id: 'colony-1' }),
     ).resolves.toBeUndefined();
   });
+
+  describe('update', () => {
+    const existing = {
+      id: 'wh-1',
+      url: 'https://203.0.113.10/hook',
+      events: ['colony.created'],
+      secret: 'a'.repeat(64),
+      createdByUserId: 'user-1',
+    };
+
+    it('applies the SSRF guard to a changed URL, so an edit is no way around it', async () => {
+      prisma.webhookSubscription.findUnique.mockResolvedValue(existing);
+
+      await expect(
+        service.update('wh-1', { url: 'http://localhost/hook' }, 'user-1'),
+      ).rejects.toBeInstanceOf(BadRequestException);
+      expect(prisma.webhookSubscription.update).not.toHaveBeenCalled();
+    });
+
+    it('keeps the signing secret so a working receiver does not break', async () => {
+      prisma.webhookSubscription.findUnique.mockResolvedValue(existing);
+      prisma.webhookSubscription.update.mockResolvedValue({
+        ...existing,
+        events: ['colony.created', 'harvest.created'],
+      });
+
+      await service.update(
+        'wh-1',
+        { events: ['colony.created', 'harvest.created'] },
+        'user-1',
+      );
+
+      const [[updateArgs]] = prisma.webhookSubscription.update.mock.calls as [
+        [{ data: Record<string, unknown> }],
+      ];
+      expect(updateArgs.data).not.toHaveProperty('secret');
+    });
+
+    it('keeps the secret out of the audit log', async () => {
+      prisma.webhookSubscription.findUnique.mockResolvedValue(existing);
+      prisma.webhookSubscription.update.mockResolvedValue(existing);
+
+      await service.update('wh-1', { events: ['colony.created'] }, 'user-1');
+
+      const [[auditArgs]] = auditLog.record.mock.calls as [
+        [
+          {
+            beforeData: Record<string, unknown>;
+            afterData: Record<string, unknown>;
+          },
+        ],
+      ];
+      expect(auditArgs.beforeData).not.toHaveProperty('secret');
+      expect(auditArgs.afterData).not.toHaveProperty('secret');
+    });
+
+    it('throws NotFoundException for an unknown subscription', async () => {
+      prisma.webhookSubscription.findUnique.mockResolvedValue(null);
+
+      await expect(
+        service.update('missing', { events: ['colony.created'] }, 'user-1'),
+      ).rejects.toBeInstanceOf(NotFoundException);
+    });
+  });
 });