feat(option): add sw offline

fix(openresty): scope sw injection per cert partition

fix(lint): satisfy revive and biome format for sw offline feature

docs: sw offline scope changelog

fix(frontend): use scoped query key for sw scope zones

fix(frontend): hide preview link in sw contact page editor

feat(frontend): add sw scope domain picker and contact page fields

refactor(frontend): generalize html editor workspace for reuse

feat(openresty): scope sw offline injection by route domains

feat(openresty): add sw offline domains snapshot field

feat(option): add sw offline domains scope option

docs: fill html editor workspace generalization detail

docs: sw offline scope implementation plan

docs: sw offline scope design

test(openresty): assert single merged access block in sw enabled servers

fix(openresty): restrict sw intercept to https server blocks

fix(openresty): version sw offline cache by html content

fix(agent): escape redir in sw challenge page to prevent xss

fix(agent): return sw.runtime module table and add lua spec

docs: sw offline fallback changelog

fix(frontend): memoize option map to preserve unsaved contact page edits

feat(frontend): add response pages module with contact page tab

feat(agent): ship sw offline lua assets and placeholder substitution

feat(config): wire sw offline options into config snapshot

feat(openresty): render sw offline assets and challenge intercept

feat(openresty): add sw offline ConfigSnapshot fields and placeholder

feat(db): seed sw offline options

feat(option): add sw offline config keys and validation

docs: add service worker offline fallback implementation plan

docs: adopt global-option pattern for SW offline fallback (matches origin error page)

docs: unify offline contact page with error pages as response pages

docs: service worker offline fallback design (issue #23)

internal/infra/persistence/migrator/goose/postgres/202608070001_add_sw_offline_options.sql

@@ -0,0 +1,12 @@
+-- +goose Up
+INSERT INTO w_system_configs (key, value, type, visibility, description, created_at, updated_at)
+VALUES
+  ('sw_offline_enabled', 'false', 'business', 0, '是否启用 Service Worker 离线兜底', CURRENT_TIMESTAMP, CURRENT_TIMESTAMP),
+  ('sw_offline_html', '', 'business', 0, '离线联系页自定义 HTML，空则使用内置默认', CURRENT_TIMESTAMP, CURRENT_TIMESTAMP)
+ON CONFLICT (key) DO NOTHING;
+
+-- +goose Down
+DELETE FROM w_system_configs WHERE key IN (
+  'sw_offline_enabled',
+  'sw_offline_html'
+);

internal/infra/persistence/migrator/goose/postgres/202608070002_add_sw_offline_domains.sql

@@ -0,0 +1,7 @@
+-- +goose Up
+INSERT INTO w_system_configs (key, value, type, visibility, description, created_at, updated_at)
+VALUES ('sw_offline_domains', '[]', 'business', 0, 'SW 离线兜底生效域名列表（JSON 数组，空则仅总开关无效）', CURRENT_TIMESTAMP, CURRENT_TIMESTAMP)
+ON CONFLICT (key) DO NOTHING;
+
+-- +goose Down
+DELETE FROM w_system_configs WHERE key = 'sw_offline_domains';

internal/infra/persistence/migrator/goose/sqlite/202608070001_add_sw_offline_options.sql

@@ -0,0 +1,12 @@
+-- +goose Up
+INSERT INTO w_system_configs (key, value, type, visibility, description, created_at, updated_at)
+VALUES
+  ('sw_offline_enabled', 'false', 'business', 0, '是否启用 Service Worker 离线兜底', CURRENT_TIMESTAMP, CURRENT_TIMESTAMP),
+  ('sw_offline_html', '', 'business', 0, '离线联系页自定义 HTML，空则使用内置默认', CURRENT_TIMESTAMP, CURRENT_TIMESTAMP)
+ON CONFLICT (key) DO NOTHING;
+
+-- +goose Down
+DELETE FROM w_system_configs WHERE key IN (
+  'sw_offline_enabled',
+  'sw_offline_html'
+);

internal/infra/persistence/migrator/goose/sqlite/202608070002_add_sw_offline_domains.sql

@@ -0,0 +1,7 @@
+-- +goose Up
+INSERT INTO w_system_configs (key, value, type, visibility, description, created_at, updated_at)
+VALUES ('sw_offline_domains', '[]', 'business', 0, 'SW 离线兜底生效域名列表（JSON 数组，空则仅总开关无效）', CURRENT_TIMESTAMP, CURRENT_TIMESTAMP)
+ON CONFLICT (key) DO NOTHING;
+
+-- +goose Down
+DELETE FROM w_system_configs WHERE key = 'sw_offline_domains';

internal/infra/persistence/migrator/migrator_test.go

@@ -21,8 +21,10 @@ import (
 
 // expectedMigratedSystemConfigCount 包含初始 32 项系统配置、202606220004
 // 从 of_options 迁移过来的 48 项业务配置、Pages 的 2 项业务配置、
-// OpenResty 默认限流的 3 项业务配置，以及单 IP 请求频率限制 1 项业务配置。
-const expectedMigratedSystemConfigCount = 86
+// OpenResty 默认限流的 3 项业务配置、单 IP 请求频率限制 1 项业务配置、
+// 源站错误页的 4 项业务配置，以及 Service Worker 离线兜底的 2 项业务配置、
+// SW 离线兜底生效域名的 1 项业务配置。
+const expectedMigratedSystemConfigCount = 93
 
 func TestMigrateInitializesSQLiteDatabase(t *testing.T) {
 	sqliteDB, err := gorm.Open(sqlite.Open(":memory:"), &gorm.Config{