Initial lookbook implementation

Pinterest-style visual bookmarking app with:
- URL metadata extraction (OG/Twitter meta, oEmbed fallback)
- Image caching in Postgres with 480px thumbnails
- Multi-tag filtering with Ctrl/Cmd for OR mode
- Fuzzy tag suggestions and inline tag editing
- Browser console auth() with first-use password setup
- Brutalist UI with Commit Mono font and Pico CSS
- Light/dark mode via browser preference

vendor/golang.org/x/text/secure/precis/doc.go

@@ -0,0 +1,14 @@
+// Copyright 2015 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// Package precis contains types and functions for the preparation,
+// enforcement, and comparison of internationalized strings ("PRECIS") as
+// defined in RFC 8264. It also contains several pre-defined profiles for
+// passwords, nicknames, and usernames as defined in RFC 8265 and RFC 8266.
+//
+// BE ADVISED: This package is under construction and the API may change in
+// backwards incompatible ways and without notice.
+package precis // import "golang.org/x/text/secure/precis"
+
+//go:generate go run gen.go gen_trieval.go