chore: rename quicproquo → quicprochat in docs, Docker, CI, and packaging

Rename all project references from quicproquo/qpq to quicprochat/qpc
across documentation, Docker configuration, CI workflows, packaging
scripts, operational configs, and build tooling.

- Docker: crate paths, binary names, user/group, data dirs, env vars
- CI: workflow crate references, binary names, artifact names
- Docs: all markdown files under docs/, SDK READMEs, book.toml
- Packaging: OpenWrt Makefile, init script, UCI config (file renames)
- Scripts: justfile, dev-shell, screenshot, cross-compile, ai_team
- Operations: Prometheus config, alert rules, Grafana dashboard
- Config: .env.example (QPQ_* → QPC_*), CODEOWNERS paths
- Top-level: README, CONTRIBUTING, ROADMAP, CLAUDE.md

docker-compose.prod.yml

@@ -1,4 +1,4 @@
-# Production Docker Compose for quicproquo
+# Production Docker Compose for quicprochat
 #
 # Usage:
 #   1. Copy .env.example to .env and fill in secrets
@@ -11,45 +11,45 @@
 #   - Database encryption key
 
 networks:
-  qpq:
+  qpc:
     driver: bridge
 
 volumes:
-  qpq-data:
+  qpc-data:
   prometheus-data:
   grafana-data:
 
 services:
-  # ── quicproquo server ────────────────────────────────────────────────────────
+  # ── quicprochat server ────────────────────────────────────────────────────────
   server:
     build:
       context: .
       dockerfile: docker/Dockerfile
     restart: unless-stopped
     ports:
-      - "${QPQ_LISTEN_PORT:-7000}:7000/udp"   # QUIC
-      - "${QPQ_WS_PORT:-9000}:9000"            # WebSocket bridge (optional)
+      - "${QPC_LISTEN_PORT:-7000}:7000/udp"   # QUIC
+      - "${QPC_WS_PORT:-9000}:9000"            # WebSocket bridge (optional)
     environment:
       RUST_LOG: info
-      QPQ_PRODUCTION: "true"
-      QPQ_LISTEN: "0.0.0.0:7000"
-      QPQ_DATA_DIR: /var/lib/quicproquo
-      QPQ_TLS_CERT: /var/lib/quicproquo/certs/server-cert.der
-      QPQ_TLS_KEY: /var/lib/quicproquo/certs/server-key.der
-      QPQ_AUTH_TOKEN: "${QPQ_AUTH_TOKEN}"
-      QPQ_STORE_BACKEND: sql
-      QPQ_DB_PATH: /var/lib/quicproquo/qpq.db
-      QPQ_DB_KEY: "${QPQ_DB_KEY}"
-      QPQ_METRICS_LISTEN: "0.0.0.0:9090"
-      QPQ_METRICS_ENABLED: "true"
-      QPQ_SEALED_SENDER: "${QPQ_SEALED_SENDER:-false}"
-      QPQ_REDACT_LOGS: "${QPQ_REDACT_LOGS:-true}"
-      QPQ_WS_LISTEN: "${QPQ_WS_LISTEN:-}"
+      QPC_PRODUCTION: "true"
+      QPC_LISTEN: "0.0.0.0:7000"
+      QPC_DATA_DIR: /var/lib/quicprochat
+      QPC_TLS_CERT: /var/lib/quicprochat/certs/server-cert.der
+      QPC_TLS_KEY: /var/lib/quicprochat/certs/server-key.der
+      QPC_AUTH_TOKEN: "${QPC_AUTH_TOKEN}"
+      QPC_STORE_BACKEND: sql
+      QPC_DB_PATH: /var/lib/quicprochat/qpc.db
+      QPC_DB_KEY: "${QPC_DB_KEY}"
+      QPC_METRICS_LISTEN: "0.0.0.0:9090"
+      QPC_METRICS_ENABLED: "true"
+      QPC_SEALED_SENDER: "${QPC_SEALED_SENDER:-false}"
+      QPC_REDACT_LOGS: "${QPC_REDACT_LOGS:-true}"
+      QPC_WS_LISTEN: "${QPC_WS_LISTEN:-}"
     volumes:
-      - qpq-data:/var/lib/quicproquo
-      - ./certs:/var/lib/quicproquo/certs:ro
+      - qpc-data:/var/lib/quicprochat
+      - ./certs:/var/lib/quicprochat/certs:ro
     networks:
-      - qpq
+      - qpc
     deploy:
       resources:
         limits:
@@ -63,7 +63,7 @@ services:
         soft: 65536
         hard: 65536
     healthcheck:
-      test: ["CMD", "test", "-f", "/var/lib/quicproquo/certs/server-cert.der"]
+      test: ["CMD", "test", "-f", "/var/lib/quicprochat/certs/server-cert.der"]
       interval: 30s
       timeout: 5s
       retries: 3
@@ -90,7 +90,7 @@ services:
       - '--storage.tsdb.retention.time=30d'
       - '--web.enable-lifecycle'
     networks:
-      - qpq
+      - qpc
     depends_on:
       - server
 
@@ -108,6 +108,6 @@ services:
       - ./docs/operations/dashboards:/var/lib/grafana/dashboards:ro
       - ./docs/operations/grafana-provisioning:/etc/grafana/provisioning:ro
     networks:
-      - qpq
+      - qpc
     depends_on:
       - prometheus