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>

clients/gurushow/PROJECT_STATE.md

@@ -0,0 +1,18 @@
+# GuruShow — Project State
+
+> Last updated: 2026-04-20
+
+**Status:** MAINTENANCE
+**Last Activity:** Unknown
+
+Archive player web application for the Computer Guru Show. Contains an `archive-player/` subdirectory with an `index.html` — a standalone HTML/JS player for browsing/playing archived show episodes.
+
+## What Was Done
+
+- `archive-player/index.html` — web-based episode archive player
+
+## If Resuming
+
+- Open `clients/gurushow/archive-player/index.html` to review the current state
+- No infrastructure dependencies — static HTML/JS file
+- Consider whether this belongs under `projects/radio-show/` rather than `clients/gurushow/`