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

docs/sdk/typescript.md

@@ -7,13 +7,13 @@ Location: `sdks/typescript/`
 ## Installation
 
 ```sh
-npm install quicproquo
+npm install quicprochat
 ```
 
 ## Quick Start
 
 ```typescript
-import { QpqClient } from "quicproquo";
+import { QpqClient } from "quicprochat";
 
 // Connect via WebSocket bridge
 const client = await QpqClient.connect({
@@ -115,7 +115,7 @@ The TypeScript SDK uses a WebSocket bridge proxy because browsers cannot open ra
 Browser  ─── WebSocket ───►  Bridge Proxy  ─── QUIC/capnp ───►  Server
 ```
 
-Crypto operations (Ed25519, hybrid KEM, sealed sender) run entirely in WASM, compiled from the Rust `quicproquo-core` crate.
+Crypto operations (Ed25519, hybrid KEM, sealed sender) run entirely in WASM, compiled from the Rust `quicprochat-core` crate.
 
 ## Structure