docs+site: Nightjar brand, hosted service, infrastructure plan, saved site

Persists the branding/commercial/infrastructure work (previously only in chat and
on the live site) into version control.

What changed:
- docs/naming.md: due-diligence and the decision to brand the product Nightjar
  (OpenScribe domain/GitHub/trademark collisions; alternatives screened; why Nightjar).
- docs/hosted-service.md: the commercial model - plan tiers (Self-host / Cloud
  Starter / Cloud Pro / Private), indicative pricing, backend mapping, and the
  build-to-sell roadmap (metering, billing, provisioning, DPA).
- docs/infrastructure.md: backend infra plan. Primary option = self-host on the
  3x Minisforum MS-02 cluster (one with an RTX 3050 6GB) fronted by a Cloudflare
  Tunnel, with node roles, the 3050 capacity reality, caveats, and a Hetzner cloud
  fallback. Provision-later.
- site/: reproducible marketing-site source - block content for all 11 pages
  (rebranded to Nightjar), the navigation, the Contact Form 7 config (honeypot),
  the ApisCP SOAP helper (tools/apiscp.php, no secret), and a README on how the
  WordPress site is built and managed via the API.
- state/: DECISIONS (Nightjar rebrand, hosted service, MS-02 backend), PROJECT
  (brand + commercial section), TODO (rename decision, trademark, mailbox, pricing,
  hosted-service build, infra provisioning).

Why:
- User asked to save everything to the repo. Captures the product rebrand, the
  commercialisation plan, and the infrastructure decision so a cold session has the
  full picture.

Notes:
- The repo is still named `openscribe`; the product/brand is Nightjar. A full
  codebase rename is deferred (tracked in TODO + docs/naming.md).
- No secrets committed: the ApisCP API key is read from a local scratch file, never
  the repo.

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

state/PROJECT.md

@@ -53,6 +53,16 @@ device, browses the library, plays audio and shows transcripts and summaries.
 - The device syncs three ways as specified (BLE, WiFi-to-app, independent WiFi upload).
 - The whole stack is self-hostable and licensed for open reuse.
 
+## Brand and commercial (2026-07)
+
+- **Product brand: Nightjar** (the repo is still named `openscribe`; rename deferred - see
+  `docs/naming.md`).
+- **Marketing site:** live at https://nightjar.12hobbies.studio (WordPress on ApisCP;
+  content + tooling saved in `site/`).
+- **Commercial model:** open project + a managed "hosted" backend with plan tiers
+  (`docs/hosted-service.md`); backend infra plan in `docs/infrastructure.md` (self-host on
+  the MS-02 cluster, provision later).
+
 ## Key facts
 
 - Trunk branch: `main`