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/Dockerfile.chat-test

@@ -12,45 +12,45 @@ WORKDIR /build
 
 # Copy manifests first so dependency layers are cached independently of source.
 COPY Cargo.toml Cargo.lock ./
-COPY crates/quicproquo-core/Cargo.toml   crates/quicproquo-core/Cargo.toml
-COPY crates/quicproquo-proto/Cargo.toml  crates/quicproquo-proto/Cargo.toml
-COPY crates/quicproquo-server/Cargo.toml crates/quicproquo-server/Cargo.toml
-COPY crates/quicproquo-client/Cargo.toml crates/quicproquo-client/Cargo.toml
-COPY crates/quicproquo-p2p/Cargo.toml    crates/quicproquo-p2p/Cargo.toml
+COPY crates/quicprochat-core/Cargo.toml   crates/quicprochat-core/Cargo.toml
+COPY crates/quicprochat-proto/Cargo.toml  crates/quicprochat-proto/Cargo.toml
+COPY crates/quicprochat-server/Cargo.toml crates/quicprochat-server/Cargo.toml
+COPY crates/quicprochat-client/Cargo.toml crates/quicprochat-client/Cargo.toml
+COPY crates/quicprochat-p2p/Cargo.toml    crates/quicprochat-p2p/Cargo.toml
 
 # Create dummy source files so `cargo build` can resolve the dependency graph
 # and cache the compiled dependencies before copying real source.
 RUN mkdir -p \
-        crates/quicproquo-core/src \
-        crates/quicproquo-proto/src \
-        crates/quicproquo-server/src \
-        crates/quicproquo-client/src \
-        crates/quicproquo-p2p/src \
-    && echo 'fn main() {}' > crates/quicproquo-server/src/main.rs \
-    && echo 'fn main() {}' > crates/quicproquo-client/src/main.rs \
-    && touch crates/quicproquo-core/src/lib.rs \
-    && touch crates/quicproquo-proto/src/lib.rs \
-    && touch crates/quicproquo-p2p/src/lib.rs
+        crates/quicprochat-core/src \
+        crates/quicprochat-proto/src \
+        crates/quicprochat-server/src \
+        crates/quicprochat-client/src \
+        crates/quicprochat-p2p/src \
+    && echo 'fn main() {}' > crates/quicprochat-server/src/main.rs \
+    && echo 'fn main() {}' > crates/quicprochat-client/src/main.rs \
+    && touch crates/quicprochat-core/src/lib.rs \
+    && touch crates/quicprochat-proto/src/lib.rs \
+    && touch crates/quicprochat-p2p/src/lib.rs
 
 # Schemas must exist before the proto crate's build.rs runs.
 COPY schemas/ schemas/
 
 # Build dependencies only (source stubs mean this layer is cache-friendly).
 # The GUI crate is not included, so workspace resolution may fail — || true handles it.
-RUN cargo build --release --bin qpq-server --bin qpq 2>/dev/null || true
+RUN cargo build --release --bin qpc-server --bin qpc 2>/dev/null || true
 
 # Copy real source and build for real.
 COPY crates/ crates/
 
 # Touch source to force re-compilation after copying real crates.
 RUN touch \
-        crates/quicproquo-core/src/lib.rs \
-        crates/quicproquo-proto/src/lib.rs \
-        crates/quicproquo-p2p/src/lib.rs \
-        crates/quicproquo-server/src/main.rs \
-        crates/quicproquo-client/src/main.rs
+        crates/quicprochat-core/src/lib.rs \
+        crates/quicprochat-proto/src/lib.rs \
+        crates/quicprochat-p2p/src/lib.rs \
+        crates/quicprochat-server/src/main.rs \
+        crates/quicprochat-client/src/main.rs
 
-RUN cargo build --release --bin qpq-server --bin qpq
+RUN cargo build --release --bin qpc-server --bin qpc
 
 # ── Stage 2: Runtime ──────────────────────────────────────────────────────────
 #
@@ -61,8 +61,8 @@ RUN apt-get update \
     && apt-get install -y --no-install-recommends ca-certificates \
     && rm -rf /var/lib/apt/lists/*
 
-COPY --from=builder /build/target/release/qpq-server /usr/local/bin/qpq-server
-COPY --from=builder /build/target/release/qpq        /usr/local/bin/qpq
+COPY --from=builder /build/target/release/qpc-server /usr/local/bin/qpc-server
+COPY --from=builder /build/target/release/qpc        /usr/local/bin/qpc
 
 RUN mkdir -p /chat