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/github.com/pressly/goose/v3/osfs.go

@@ -0,0 +1,28 @@
+package goose
+
+import (
+	"io/fs"
+	"os"
+	"path/filepath"
+)
+
+// osFS wraps functions working with os filesystem to implement fs.FS interfaces.
+type osFS struct{}
+
+func (osFS) Open(name string) (fs.File, error) { return os.Open(filepath.FromSlash(name)) }
+
+func (osFS) ReadDir(name string) ([]fs.DirEntry, error) { return os.ReadDir(filepath.FromSlash(name)) }
+
+func (osFS) Stat(name string) (fs.FileInfo, error) { return os.Stat(filepath.FromSlash(name)) }
+
+func (osFS) ReadFile(name string) ([]byte, error) { return os.ReadFile(filepath.FromSlash(name)) }
+
+func (osFS) Glob(pattern string) ([]string, error) { return filepath.Glob(filepath.FromSlash(pattern)) }
+
+type noopFS struct{}
+
+var _ fs.FS = noopFS{}
+
+func (f noopFS) Open(name string) (fs.File, error) {
+	return nil, os.ErrNotExist
+}