Fix ajv (#8333)

* wip

* ✌️

* use ajv/dist/core

* revert try

* clean up

packages/backend/src/server/api/endpoints/notifications/create.ts

@@ -12,7 +12,7 @@ export const meta = {
 	},
 } as const;
 
-const paramDef = {
+export const paramDef = {
 	type: 'object',
 	properties: {
 		body: { type: 'string' },

packages/backend/src/server/api/endpoints/notifications/mark-all-as-read.ts

@@ -10,7 +10,7 @@ export const meta = {
 	kind: 'write:notifications',
 } as const;
 
-const paramDef = {
+export const paramDef = {
 	type: 'object',
 	properties: {},
 	required: [],

packages/backend/src/server/api/endpoints/notifications/read.ts

@@ -20,7 +20,7 @@ export const meta = {
 	},
 } as const;
 
-const paramDef = {
+export const paramDef = {
 	type: 'object',
 	properties: {
 		notificationId: { type: 'string', format: 'misskey:id' },