fix(persistence): migrate all pkg/persistence imports to plugins/infra/database and plugins/infra/cache

- Replace db.DB(ctx) with database.DB(ctx) from plugins/infra/database
- Replace db.Redis/db.PrefixedKey/db.GetJSON/db.SetJSON with cachepkg.* from plugins/infra/cache
- Replace pkg/persistence/idgen with pkg/idgen (already exists)
- Replace pkg/persistence/batchwriter with pkg/batchwriter (already exists)
- Replace pkg/persistence/migrator with pkg/migrator (already exists)
- Replace pkg/persistence/logstore with plugins/domain/risk_control/logstore
- Delete defunct pkg/{persistence,cap,message_gateway,push,shared,task}
- Fix vet issues: db alias in domain_test.go, driver_asynq_worker.TaskHandler reference
- Update Makefile architecture guard
- Update docs and skill references
- Update go.mod: gorilla/sessions promotion to direct dependency

pkg/migrator/goose/sqlite/202606140001_create_push_tables.sql

@@ -0,0 +1,34 @@
+-- +goose Up
+CREATE TABLE w_push_events (
+    id INTEGER PRIMARY KEY AUTOINCREMENT,
+    event_key TEXT NOT NULL UNIQUE,
+    name TEXT NOT NULL,
+    channels TEXT NOT NULL,
+    targets TEXT NOT NULL,
+    template TEXT NOT NULL,
+    enabled BOOLEAN NOT NULL DEFAULT FALSE,
+    created_at DATETIME NOT NULL,
+    updated_at DATETIME NOT NULL
+);
+
+CREATE INDEX idx_w_push_events_enabled ON w_push_events(enabled);
+
+CREATE TABLE w_push_histories (
+    id INTEGER PRIMARY KEY AUTOINCREMENT,
+    event_key TEXT NOT NULL,
+    channel TEXT NOT NULL,
+    target TEXT NOT NULL,
+    title TEXT NOT NULL,
+    content TEXT NOT NULL,
+    level TEXT NOT NULL,
+    status TEXT NOT NULL,
+    error_msg TEXT,
+    created_at DATETIME NOT NULL
+);
+
+CREATE INDEX idx_w_push_histories_event ON w_push_histories(event_key);
+CREATE INDEX idx_w_push_histories_created ON w_push_histories(created_at);
+
+-- +goose Down
+DROP TABLE IF EXISTS w_push_histories;
+DROP TABLE IF EXISTS w_push_events;