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/src/getting-started/wasm.md

@@ -1,6 +1,6 @@
 # WASM Integration
 
-The `quicproquo-core` crate supports compilation to `wasm32-unknown-unknown`
+The `quicprochat-core` crate supports compilation to `wasm32-unknown-unknown`
 when the `native` feature is disabled. This exposes the pure-crypto subset of
 the library for use in browsers or other WASM runtimes.
 
@@ -9,7 +9,7 @@ the library for use in browsers or other WASM runtimes.
 ```bash
 rustup target add wasm32-unknown-unknown
 
-cargo build -p quicproquo-core \
+cargo build -p quicprochat-core \
     --target wasm32-unknown-unknown \
     --no-default-features
 ```
@@ -43,13 +43,13 @@ The following require the `native` feature and will not compile to WASM:
 - `keystore` -- OpenMLS key store with disk persistence
 - `opaque_auth` -- OPAQUE cipher suite configuration
 
-Networking (`quicproquo-client`, `quicproquo-server`) is not available in WASM.
+Networking (`quicprochat-client`, `quicprochat-server`) is not available in WASM.
 
 ## Random number generation
 
 On `wasm32`, the `getrandom` crate is configured with the `js` feature to
 use the browser's `crypto.getRandomValues()` API. This is set automatically
-in `quicproquo-core/Cargo.toml`:
+in `quicprochat-core/Cargo.toml`:
 
 ```toml
 [target.'cfg(target_arch = "wasm32")'.dependencies]
@@ -71,7 +71,7 @@ cd sdks/typescript/wasm-crypto
 wasm-pack build --target web --out-dir ../pkg
 ```
 
-The resulting 175 KB WASM bundle is used by the `@quicproquo/client`
+The resulting 175 KB WASM bundle is used by the `@quicprochat/client`
 TypeScript SDK and the interactive browser demo.
 
 See the [TypeScript SDK and Browser Demo](typescript-sdk.md) guide for