Phase 1: tier demo landing pages, CRM schema, playbooks

- templates/landing: two self-contained demos (Tier A barbershop / Google stack,
  Tier B physio / self-hosted) + chooser page
- sheets/SCHEMA.md: Google Sheets CRM workbook spec
- playbooks: per-client setup checklists for both tiers
- README + .gitignore
- Demos avoid unverifiable claims (no "DSGVO-konform", no "Ende-zu-Ende")

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

sheets/SCHEMA.md

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+# Master CRM — Google Sheets workbook spec
+
+One Google Sheets workbook = the whole CRM + log. I create/maintain this via the Google Drive MCP
+once the fresh project Google account exists (Phase 2). n8n reads/writes it via the Sheets node.
+
+Workbook name: **`SMB-Online — CRM`**. One tab per concern below. Row 1 = headers (exact column
+names matter — n8n maps by header).
+
+## Tab: `Clients`
+The client list/table — the heart of the tracking requirement.
+
+| Column | Type | Notes |
+|---|---|---|
+| `client_id` | text | e.g. `C-0001` (stable key) |
+| `business_name` | text | |
+| `owner_name` | text | |
+| `email` | text | |
+| `phone` | text | |
+| `niche` | text | barber, physio, café, … |
+| `tier` | A \| B | delivery tier |
+| `status` | enum | `lead` → `onboarding` → `active` → `paused` → `churned` |
+| `domain` | text | live site URL |
+| `stack_notes` | text | hosting, booking tool, etc. |
+| `vault_ref` | text | **pointer** to Vaultwarden item — never a password |
+| `services` | text | comma list: site, booking, reception, … |
+| `billing_cycle` | enum | monthly / yearly / one-off |
+| `monthly_fee_eur` | number | |
+| `start_date` | date | |
+| `renewal_date` | date | drives the renewal-reminder workflow |
+| `created_at` | datetime | |
+| `notes` | text | |
+
+## Tab: `Leads`
+Every inbound lead across all client sites (and your own).
+
+`lead_id` · `received_at` · `client_id` · `source` (which site/form) · `name` · `contact` ·
+`service_interest` · `message` · `status` (new / contacted / won / lost) · `notified` (bool)
+
+## Tab: `Bookings`
+Every appointment booked across client sites.
+
+`booking_id` · `created_at` · `client_id` · `customer_name` · `customer_contact` · `service` ·
+`start_time` · `end_time` · `source` (gcal / calcom) · `status` (confirmed / cancelled / no-show)
+
+## Tab: `Projects`
+Per-client deliverable tracking.
+
+`project_id` · `client_id` · `deliverable` · `tier` · `checklist` (e.g. `domain✓ page✓ booking☐`) ·
+`go_live_date` · `status` (todo / in-progress / live)
+
+## Tab: `Invoices`
+`invoice_id` · `client_id` · `issued_date` · `due_date` · `amount_eur` · `period` ·
+`status` (draft / sent / paid / overdue) · `paid_date`
+
+## Tab: `Activity Log`
+Append-only audit trail — **every automated action writes one row here.**
+
+`ts` · `workflow` (lead-intake / booking-sync / renewal / onboarding / invoice) · `client_id` ·
+`action` · `detail` · `result` (ok / error)
+
+## Dashboard
+Not a tab — a **Looker Studio** report wired to this workbook: pipeline by `status`, MRR
+(sum of `monthly_fee_eur` where `status=active`), renewals due in next 30 days, recent leads.