feat: v0.1.4 — device intelligence dashboard

Add tabbed dashboard at /dashboard/ with three D3.js visualizations:
- Vendor treemap (devices grouped by type and vendor)
- SSID social graph (force-directed, shared probed SSIDs as edges)
- Fingerprint clusters (packed circles by device behavior)

Intelligence API endpoints at /api/v1/intelligence/ with param
validation. Dashboard built on htmx + Pico CSS dark theme + D3 v7,
all vendored locally (make vendor). 13 new tests (59 total).

CHANGELOG.md

@@ -2,6 +2,22 @@
 
 All notable changes to this project will be documented in this file.
 
+## [v0.1.4] - 2026-02-06
+
+### Added
+- Device Intelligence dashboard at `/dashboard/` (htmx + Pico CSS + D3.js)
+- Vendor treemap visualization (devices grouped by type and vendor)
+- SSID social graph (force-directed graph linking devices by shared probed SSIDs)
+- Fingerprint clusters (packed circles grouping devices by behavior)
+- Intelligence API endpoints:
+  - `GET /api/v1/intelligence/vendor-treemap`
+  - `GET /api/v1/intelligence/ssid-graph`
+  - `GET /api/v1/intelligence/fingerprint-clusters`
+- Vendored static assets: Pico CSS, htmx, D3.js v7 (`make vendor`)
+- Jinja2 base template with dark theme
+- Dashboard and API tests (13 new tests)
+- Pagination totals, request logging, data retention CLI
+
 ## [v0.1.3] - 2026-02-05
 
 ### Added