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/internal/dialects/tidb.go

@@ -0,0 +1,52 @@
+package dialects
+
+import (
+	"fmt"
+
+	"github.com/pressly/goose/v3/database/dialect"
+)
+
+// NewTidb returns a [dialect.Querier] for TiDB dialect.
+func NewTidb() dialect.Querier {
+	return &Tidb{}
+}
+
+type Tidb struct{}
+
+var _ dialect.Querier = (*Tidb)(nil)
+
+func (t *Tidb) CreateTable(tableName string) string {
+	q := `CREATE TABLE %s (
+		id BIGINT UNSIGNED NOT NULL AUTO_INCREMENT UNIQUE,
+		version_id bigint NOT NULL,
+		is_applied boolean NOT NULL,
+		tstamp timestamp NULL default now(),
+		PRIMARY KEY(id)
+	)`
+	return fmt.Sprintf(q, tableName)
+}
+
+func (t *Tidb) InsertVersion(tableName string) string {
+	q := `INSERT INTO %s (version_id, is_applied) VALUES (?, ?)`
+	return fmt.Sprintf(q, tableName)
+}
+
+func (t *Tidb) DeleteVersion(tableName string) string {
+	q := `DELETE FROM %s WHERE version_id=?`
+	return fmt.Sprintf(q, tableName)
+}
+
+func (t *Tidb) GetMigrationByVersion(tableName string) string {
+	q := `SELECT tstamp, is_applied FROM %s WHERE version_id=? ORDER BY tstamp DESC LIMIT 1`
+	return fmt.Sprintf(q, tableName)
+}
+
+func (t *Tidb) ListMigrations(tableName string) string {
+	q := `SELECT version_id, is_applied from %s ORDER BY id DESC`
+	return fmt.Sprintf(q, tableName)
+}
+
+func (t *Tidb) GetLatestVersion(tableName string) string {
+	q := `SELECT MAX(version_id) FROM %s`
+	return fmt.Sprintf(q, tableName)
+}