feat: Add guided installer with hardware detection and RVF build profiles

- install.sh: 7-step interactive installer detecting system, toolchains,
  WiFi hardware (interfaces, ESP32 USB, Intel CSI debug), and recommending
  the best build profile (verify/python/rust/browser/iot/docker/field/full)
- Rust is the primary recommended runtime (810x faster than Python)
- Makefile: 15+ targets including make install, make check, make build-rust,
  make build-wasm, make bench, make run-api, make run-viz
- README: Updated installation section with Rust-primary ordering, removed
  mock testing references, added v2.2.0 changelog entry

https://claude.ai/code/session_01Ki7pvEZtJDvqJkmyn6B714

.claude-flow/metrics/codebase-map.json

@@ -1,5 +1,5 @@
 {
-  "timestamp": "2026-02-28T09:12:41.502Z",
+  "timestamp": "2026-02-28T13:34:03.432Z",
   "projectRoot": "/home/user/wifi-densepose",
   "structure": {
     "hasPackageJson": false,
@@ -7,5 +7,5 @@
     "hasClaudeConfig": true,
     "hasClaudeFlow": true
   },
-  "scannedAt": 1772269961502
+  "scannedAt": 1772285643433
 }