chore: add PROJECT_STATE.md to all active projects and clients

Establishes inter-session coordination for 29 projects/clients:
- Full lock/component format for active projects (dataforth-dos,
  radio-show, cascades-tucson, valleywide, instrumental-music-center,
  lens-auto-brokerage, msp-audit-scripts)
- Light format for complete/stalled/planning (msp-pricing, pavon,
  wrightstown-*, gururmm-agent, community-forum, glaztech, etc.)
- Onboarding stubs for recently added clients

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

projects/newsletter/PROJECT_STATE.md

@@ -0,0 +1,21 @@
+# Newsletter — Project State
+
+> Last updated: 2026-04-20
+
+**Status:** MAINTENANCE (ad-hoc)
+**Last Activity:** 2026-04-09
+
+HTML email newsletter templates for Arizona Computer Guru. Four variants maintained: flash-sale, clean, bold, and warm. Used as-needed for client or marketing emails.
+
+## What Was Done
+
+- `flash-sale-newsletter.html` — promotional flash-sale layout
+- `variant-bold.html` — bold/high-contrast design variant
+- `variant-clean.html` — minimal clean design variant
+- `variant-warm.html` — warm/approachable design variant
+
+## If Resuming
+
+- Copy the most appropriate variant for the email campaign
+- Customize copy and any promotional details
+- No infrastructure — pure HTML/CSS, send via whatever email platform is in use