feat(drug schema): added drug schema to models

src/models/drugSchema.ts

+import { z } from 'zod';
+import { referenceSchema } from './referenceSchema';
+import { targetSchema } from './targetSchema';
+
+export const drugSchema = z.object({
+  /** identifier of the chemical */
+  id: z.string(),
+  name: z.string(),
+  description: z.string(),
+  /** list of synonyms  */
+  synonyms: z.array(z.string()),
+  brandNames: z.array(z.string()),
+  /** does drug cross blood brain barrier */
+  bloodBrainBarrier: z.string(),
+  /** list of references */
+  references: z.array(referenceSchema),
+  /** list of targets */
+  targets: z.array(targetSchema),
+});

src/models/referenceSchema.ts

+import { z } from 'zod';
+
+export const referenceSchema = z.object({
+  link: z.string(),
+  article: z.object({
+    title: z.string(),
+    authors: z.array(z.string()),
+    journal: z.string(),
+    year: z.number(),
+    link: z.string(),
+    pubmedId: z.string(),
+    citationCount: z.number(),
+  }),
+  type: z.string(),
+  resource: z.string(),
+  id: z.number(),
+  annotatorClassName: z.string(),
+});

src/models/targetElementSchema.ts

+import { z } from 'zod';
+
+export const targetElementSchema = z.object({
+  id: z.number(),
+  modelId: z.number(),
+  type: z.string(),
+});

src/models/targetParticipantSchema.ts

+import { z } from 'zod';
+
+export const targetParticipantSchema = z.object({
+  link: z.string(),
+  type: z.string(),
+  resource: z.string(),
+  id: z.number(),
+  annotatorClassName: z.string(),
+});

src/models/targetSchema.ts

+import { z } from 'zod';
+import { referenceSchema } from './referenceSchema';
+import { targetElementSchema } from './targetElementSchema';
+import { targetParticipantSchema } from './targetParticipantSchema';
+
+export const targetSchema = z.object({
+  /** target name */
+  name: z.string(),
+  /** list of target references */
+  references: z.array(referenceSchema),
+  /**  list of elements on the map associated with this target */
+  targetElements: z.array(targetElementSchema),
+  /** list of identifiers associated with this target */
+  targetParticipants: z.array(targetParticipantSchema),
+});