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

sdks/web/package.json

@@ -1,5 +1,5 @@
 {
-  "name": "@quicproquo/web",
+  "name": "@quicprochat/web",
   "version": "0.1.0",
   "private": true,
   "type": "module",
@@ -9,7 +9,7 @@
     "clean": "rm -rf dist"
   },
   "dependencies": {
-    "@quicproquo/client": "file:../typescript"
+    "@quicprochat/client": "file:../typescript"
   },
   "devDependencies": {
     "typescript": "^5.0.0"