feat: automate business upgrades and sync reviewed frontend

deploy/migrations/assets.go

@@ -0,0 +1,79 @@
+// Package migrations contains the reviewed SQL bundled with the application.
+// SQL execution and database lifecycle remain in internal/data.
+package migrations
+
+import (
+	_ "embed"
+	"fmt"
+	"regexp"
+	"strings"
+)
+
+//go:embed legacy-framework.sql
+var frameworkSQL string
+
+//go:embed cleanup-legacy.sql
+var cleanupSQL string
+
+func FrameworkSQL() string { return frameworkSQL }
+func CleanupSQL() string   { return cleanupSQL }
+
+// Statements understands the DELIMITER directives in the bundled, trusted
+// scripts. It does not split stored-procedure bodies on their semicolons.
+func Statements(source string) ([]string, error) {
+	delimiter := ";"
+	var buffer strings.Builder
+	var statements []string
+	for _, line := range strings.Split(source, "\n") {
+		trimmed := strings.TrimSpace(line)
+		if strings.HasPrefix(trimmed, "DELIMITER ") {
+			delimiter = strings.TrimSpace(strings.TrimPrefix(trimmed, "DELIMITER "))
+			if delimiter == "" {
+				return nil, fmt.Errorf("empty SQL delimiter")
+			}
+			continue
+		}
+		if buffer.Len() == 0 && (trimmed == "" || strings.HasPrefix(trimmed, "--")) {
+			continue
+		}
+		buffer.WriteString(line)
+		buffer.WriteByte('\n')
+		if strings.HasSuffix(trimmed, delimiter) {
+			statement := strings.TrimSuffix(strings.TrimSpace(buffer.String()), delimiter)
+			statements = append(statements, statement)
+			buffer.Reset()
+		}
+	}
+	if strings.TrimSpace(buffer.String()) != "" {
+		return nil, fmt.Errorf("unterminated SQL script")
+	}
+	return statements, nil
+}
+
+func CleanupTables() []string {
+	block := regexp.MustCompile(`(?s)INSERT INTO _sw_cleanup_targets_20261106\([^\n]+\) VALUES\s*(.*?);`).FindStringSubmatch(cleanupSQL)
+	if len(block) != 2 {
+		panic("cleanup table manifest is missing")
+	}
+	var names []string
+	for _, match := range regexp.MustCompile(`\('([a-z0-9_]+)'`).FindAllStringSubmatch(block[1], -1) {
+		names = append(names, match[1])
+	}
+	return names
+}
+
+func LegacyArchives() map[string]string {
+	archives := map[string]string{}
+	for _, match := range regexp.MustCompile("`([a-z0-9_]+)` TO `(legacy_sw_20261103_[a-z0-9_]+)`").FindAllStringSubmatch(frameworkSQL, -1) {
+		archives[match[1]] = match[2]
+	}
+	return archives
+}
+
+func FrameworkCreatedTables() []string {
+	var names []string
+	for _, match := range regexp.MustCompile("(?m)^CREATE TABLE `?([a-z0-9_]+)`? ").FindAllStringSubmatch(frameworkSQL, -1) {
+		names = append(names, match[1])
+	}
+	return names
+}