feature/did accounts (#23)

* feat: add support for DID number as primary key for Controllers

* refactor: rename pkg/proxy to app/proxy

* feat: add vault module keeper tests

* feat(vault): add DID keeper to vault module

* refactor: move vault client code to its own package

* refactor(vault): extract schema definition

* refactor: use vaulttypes for MsgAllocateVault

* refactor: update vault assembly logic to use new methods

* feat: add dwn-proxy command

* refactor: remove unused context.go file

* refactor: remove unused web-related code

* feat: add DWN proxy server

* feat: add BuildTx RPC to vault module

* fix: Implement BuildTx endpoint

* feat: add devbox integration to project

x/vault/client/dwn/state/openid.go

@@ -0,0 +1,23 @@
+package state
+
+import (
+	"github.com/labstack/echo/v4"
+)
+
+func grantAuthorization(e echo.Context) error {
+	// Implement authorization endpoint using passkey authentication
+	// Store session data in cache
+	return nil
+}
+
+func getJWKS(e echo.Context) error {
+	// Implement token endpoint
+	// Use cached session data for validation
+	return nil
+}
+
+func getToken(e echo.Context) error {
+	// Implement token endpoint
+	// Use cached session data for validation
+	return nil
+}