Add "recordings" table, save raw audio blobs in it

Other changes:
- Move Stored(Voicemail|Recording) interfaces into knex/types/tables
module for reduced boilerplate.
- Change updateStoredVoicemail to take Partial<StoredVoicemail>,
allowing to only update only some columns

src/types.ts

@@ -97,8 +97,8 @@ export interface RCMessage {
 
 export interface Recording {
   duration: number;
-  mimetype: string;
-  audio: Blob;
+  mimeType: string;
+  audio: ArrayBuffer;
 }
 
 export interface Transcription {
@@ -106,21 +106,33 @@ export interface Transcription {
   text: string | null;
 }
 
-export interface StoredVoicemail {
-  messageId: number;
-  extensionId: number;
-  processed: boolean;
-  received: string;
-  toNumber: string;
-  extensionNumber: string;
-  extensionName: string;
-  fromNumber: string;
-  fromName?: string;
-  duration: number;
-  transcriptionStatus: TranscriptionStatus;
-  transcription: string | null;
-  ticketId?: number;
-  contactId?: number;
-  contactableType?: string;
-  contactableId?: number;
+declare module "knex/types/tables" {
+  interface StoredVoicemail {
+    messageId: number;
+    extensionId: number;
+    received: string;
+    toNumber: string;
+    extensionNumber: string;
+    extensionName: string;
+    fromNumber: string;
+    fromName: string;
+    duration: number;
+    transcriptionStatus: TranscriptionStatus;
+    transcription: string | null;
+    ticketId?: number;
+    contactId?: number;
+    contactableType?: string;
+    contactableId?: number;
+  }
+
+  interface StoredRecording {
+    messageId: number;
+    mimeType: string;
+    audio: ArrayBuffer;
+  }
+
+  interface Tables {
+    voicemails: StoredVoicemail;
+    recordings: StoredRecording;
+  }
 }