chore(brand): rename the product to ReplyPier

The upstream project name is gone from code, assets, docs and build
output: brand strings, domains (replypier.site and its app/api/docs/help
subdomains), env prefixes, image and network names, the widget's public
JS API (window.ReplyPier, replypierId/BaseUrl/Config/Token), CSS tokens
(--rp-*), file and directory names, and the WordPress plugin package.

- widget loader is now webclient/replypier.min.js; both bundles rebuilt
  from source (backend/assets/widget.{js,css}, frontend/public/webclient)
- NOTICE, llms.txt, CONTRIBUTING, HELP_CENTER_INFRA and config.dev.js
  rewritten rather than string-swapped; the demo config no longer ships
  the previous vendor's Firebase/Razorpay/Google keys
- new migration replypier_ai_model_001 adds REPLYPIER to the managed
  AIModelType and rewrites pre-rename rows
- local compose project, database, role and volume renamed; LOCAL_DEPLOY
  documents carrying the old local data over

e2e/specs/crm/pipedrive.org.spec.ts

@@ -49,9 +49,9 @@ test.describe('Pipedrive', () => {
 
     const personId = (created.response as { data: { id: number } }).data.id
     const [lead] = (await externals.calls('pipedrive', 'leads', { contains: `"person_id":${personId}` })).filter((c) => c.method === 'POST')
-    expect(lead.body).toMatchObject({ title: `${name} — ChatterMate lead`, person_id: personId })
+    expect(lead.body).toMatchObject({ title: `${name} — ReplyPier lead`, person_id: personId })
     const leadId = (lead.response as { data: { id: string } }).data.id
     const [note] = await externals.calls('pipedrive', 'notes', { contains: leadId })
-    expect(note.body).toMatchObject({ lead_id: leadId, content: expect.stringContaining('Lead captured by ChatterMate') })
+    expect(note.body).toMatchObject({ lead_id: leadId, content: expect.stringContaining('Lead captured by ReplyPier') })
   })
 })