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/swift/Package.swift

@@ -1,32 +1,32 @@
 // swift-tools-version: 5.9
-// QuicProQuo Swift SDK — wraps libquicproquo_ffi for iOS/macOS.
+// QuicProChat Swift SDK — wraps libquicprochat_ffi for iOS/macOS.
 
 import PackageDescription
 
 let package = Package(
-    name: "QuicProQuo",
+    name: "QuicProChat",
     platforms: [
         .iOS(.v15),
         .macOS(.v13),
     ],
     products: [
-        .library(name: "QuicProQuo", targets: ["QuicProQuo"]),
+        .library(name: "QuicProChat", targets: ["QuicProChat"]),
     ],
     targets: [
         .systemLibrary(
-            name: "CQuicProQuo",
+            name: "CQuicProChat",
             pkgConfig: nil,
             providers: []
         ),
         .target(
-            name: "QuicProQuo",
-            dependencies: ["CQuicProQuo"],
-            path: "Sources/QuicProQuo"
+            name: "QuicProChat",
+            dependencies: ["CQuicProChat"],
+            path: "Sources/QuicProChat"
         ),
         .testTarget(
-            name: "QuicProQuoTests",
-            dependencies: ["QuicProQuo"],
-            path: "Tests/QuicProQuoTests"
+            name: "QuicProChatTests",
+            dependencies: ["QuicProChat"],
+            path: "Tests/QuicProChatTests"
         ),
     ]
 )