TASK-012: Initialize Chirp project — design spec, directory structure, README

- Add chirp-design-spec.md (857-line full technical specification)
- Create Go server directory structure (cmd/, internal/*, deploy/, tests/)
- Create PWA frontend directories (web/templates, web/static, web/sw)
- Write README with architecture overview and stack table

Infrastructure status as of 2026-05-31:
- GoToSocial v0.21.2 running on :8085
- PostgreSQL 16, Redis, Meilisearch all configured
- Nginx SSL termination for chirp.myfacefeed.com

README.md

@@ -1,3 +1,70 @@
-# chirp-pwa
+# Chirp — Fediverse Microblogging PWA
 
-Chirp — Fediverse microblogging PWA (chirp.myfacefeed.com)
+A custom Progressive Web App frontend for the Fediverse, powered by GoToSocial.
+
+**Instance:** chirp.myfacefeed.com
+
+## Architecture
+
+```
+Browser / Mobile
+    ↓ HTTPS
+Chirp Go Web Server (this repo)
+    ↓ Mastodon-compatible API
+GoToSocial (ActivityPub backend)
+    ↓ PostgreSQL + MinIO
+```
+
+## Stack
+
+| Layer | Technology |
+|-------|-----------|
+| Backend | Go 1.22, GoToSocial v0.21.2 |
+| Auth | Zitadel (OIDC) |
+| Storage | PostgreSQL 16, Redis, MinIO |
+| Search | Meilisearch |
+| Frontend | Vanilla JS PWA (no framework) |
+| Deploy | Nginx + systemd on 38.242.152.38 |
+
+## Project Layout
+
+```
+cmd/server/          — main entry point
+internal/
+  config/            — env-based config struct
+  gts/               — GoToSocial API client
+  proxy/             — API proxy (/api/v1/* passthrough)
+  oauth/             — Zitadel OIDC integration
+  db/                — chirp schema CRUD (bookmarks, lists, etc.)
+  ws/                — WebSocket hub (GTS stream bridge)
+  scheduler/         — post scheduler (Redis sorted set)
+  search/            — Meilisearch client
+web/
+  templates/         — Go HTML templates
+  static/            — CSS, JS, icons
+  sw/                — service worker
+deploy/
+  k8s/               — Kubernetes manifests (future)
+  nginx/             — nginx config
+tests/
+  integration/       — integration tests
+  e2e/               — end-to-end tests
+```
+
+## Design Spec
+
+Full technical specification: [chirp-design-spec.md](chirp-design-spec.md)
+
+## Infrastructure Notes
+
+- GoToSocial DB: PostgreSQL `gotosocial` (127.0.0.1:5432)
+- Chirp schema: PostgreSQL `chirp` (8 custom tables)
+- Redis: 127.0.0.1:6379 (sessions, queues, pub/sub)
+- Meilisearch: 127.0.0.1:7700 (search indexes)
+- MinIO: s3.myfacefeed.com / chirp-media bucket
+
+## Status
+
+Phase 1 (Infrastructure) — complete as of 2026-05-31
+Phase 2 (Go Server Core) — in progress
+Phase 3+ (PWA) — assigned to Claude3