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

packaging/openwrt/files/quicprochat.init

@@ -1,18 +1,18 @@
 #!/bin/sh /etc/rc.common
-# procd init script for quicproquo server.
-# Reads configuration from /etc/config/quicproquo (uci).
+# procd init script for quicprochat server.
+# Reads configuration from /etc/config/quicprochat (uci).
 
 START=95
 STOP=10
 USE_PROCD=1
 
-PROG=/usr/bin/qpq-server
-DATA_DIR=/var/lib/quicproquo
+PROG=/usr/bin/qpc-server
+DATA_DIR=/var/lib/quicprochat
 
 start_service() {
     local listen data_dir log_level tls_cert tls_key production
 
-    config_load quicproquo
+    config_load quicprochat
     config_get listen server listen '0.0.0.0:7000'
     config_get data_dir server data_dir "$DATA_DIR"
     config_get log_level server log_level 'info'
@@ -27,19 +27,19 @@ start_service() {
 
     procd_set_param env \
         RUST_LOG="$log_level" \
-        QPQ_LISTEN="$listen" \
-        QPQ_DATA_DIR="$data_dir" \
-        QPQ_TLS_CERT="$tls_cert" \
-        QPQ_TLS_KEY="$tls_key" \
-        QPQ_PRODUCTION="$production"
+        QPC_LISTEN="$listen" \
+        QPC_DATA_DIR="$data_dir" \
+        QPC_TLS_CERT="$tls_cert" \
+        QPC_TLS_KEY="$tls_key" \
+        QPC_PRODUCTION="$production"
 
     procd_set_param respawn 3600 5 5
     procd_set_param stderr 1
     procd_set_param stdout 1
-    procd_set_param user qpq
+    procd_set_param user qpc
     procd_close_instance
 }
 
 service_triggers() {
-    procd_add_reload_trigger "quicproquo"
+    procd_add_reload_trigger "quicprochat"
 }

packaging/openwrt/files/quicprochat.uci

@@ -0,0 +1,7 @@
+config server 'server'
+    option listen '0.0.0.0:7000'
+    option data_dir '/var/lib/quicprochat'
+    option log_level 'info'
+    option tls_cert '/var/lib/quicprochat/server-cert.der'
+    option tls_key '/var/lib/quicprochat/server-key.der'
+    option production '1'

packaging/openwrt/files/quicproquo.uci

@@ -1,7 +0,0 @@
-config server 'server'
-    option listen '0.0.0.0:7000'
-    option data_dir '/var/lib/quicproquo'
-    option log_level 'info'
-    option tls_cert '/var/lib/quicproquo/server-cert.der'
-    option tls_key '/var/lib/quicproquo/server-key.der'
-    option production '1'