[TYPES] UniversalEntity JsonbProperty and SerializedRelation (#17396)

# Introduction

In this PR we're introducing mainly two branded type signatures for both
`JsonbProperty` entities properties and `SerializedRelation` (jsonb
serialized property storing another entity id).

Allowing to dynamically map over them later in order to build universal
`jsonb` `serialized` relations.

## `JsonbProperty`

A branded wrapper type that marks entity properties stored as PostgreSQL
JSONB columns. It adds a phantom brand `__JsonbPropertyBrand__` to
object types while leaving primitives unchanged. The branded key is
optional and typed as never, also omitted when transpiled to
`UniversalFlat`

**Should be used at entities lvl only:**
```typescript
@Column({ type: 'jsonb', nullable: false })
gridPosition: JsonbProperty<GridPosition>;

@Column({ nullable: false, type: 'jsonb', default: [] })
publishedVersions: JsonbProperty<string[]>;
```

## `SerializedRelation`

A branded string type that marks foreign key IDs stored inside JSONB
objects. These are entity references serialized within a JSONB column
rather than being a regular database foreign key.

**Usage in jsonb property generic***
```ts
type FieldMetadataRelationSettings = {
  relationType: RelationType;
  onDelete?: RelationOnDeleteAction;
  joinColumnName?: string | null;
  junctionTargetFieldId?: SerializedRelation;
};
```

## `FormatJsonbSerializedRelation<T>`

A transformation type that processes JSONB properties for universal
entity mapping. It:
1. Detects properties with the `JsonbProperty` brand
2. Finds `SerializedRelation` properties
3. Renames them from `*Id` to `*UniversalIdentifier`
4. Removes the brand from the output type ( optional though )

```typescript
// Input: JsonbProperty<{ targetFieldMetadataId: SerializedRelation }>
// Output: { targetFieldMetadataUniversalIdentifier: SerializedRelation }
```

## Result
An example of the dynamic type mapping, through a type-test example
```ts
type SettingsTestCase = UniversalFlatFieldMetadata<
    | FieldMetadataType.RELATION
    | FieldMetadataType.NUMBER
    | FieldMetadataType.TEXT
  >['settings']

type SettingsExpectedResult =
  | {
      relationType: RelationType;
      onDelete?: RelationOnDeleteAction | undefined;
      joinColumnName?: string | null | undefined;
      junctionTargetFieldUniversalIdentifier?: SerializedRelation | undefined;
    }
  | {
      dataType?: NumberDataType | undefined;
      decimals?: number | undefined;
      type?: FieldNumberVariant | undefined;
    }
  | {
      displayedMaxRows?: number | undefined;
    }
  | null;

type Assertions = [
  Expect<Equal<SettingsTestCase, SettingsExpectedResult>>,
]
```

## Remarks

- Removed duplicated twenty-server and twenty-shared typed
- Removed class validator instances for default value that were not used
at runtime, we will refactor that to add validation across all entities
following a same pattern

packages/twenty-server/src/engine/core-modules/open-api/utils/__tests__/components.utils.spec.ts

@@ -53,7 +53,7 @@ describe('computeSchemaComponents', () => {
     "description": "Object description",
     "example": {
       "fieldCurrency": {
-        "amountMicros": 284000000,
+        "amountMicros": "284000000",
         "currencyCode": "EUR",
       },
       "fieldEmails": {
@@ -554,7 +554,7 @@ describe('computeSchemaComponents', () => {
     "description": "Object description",
     "example": {
       "fieldCurrency": {
-        "amountMicros": 253000000,
+        "amountMicros": "253000000",
         "currencyCode": "EUR",
       },
       "fieldEmails": {

packages/twenty-server/src/engine/core-modules/open-api/utils/components.utils.ts

@@ -1,8 +1,10 @@
 import { type OpenAPIV3_1 } from 'openapi-types';
-import { FieldMetadataType } from 'twenty-shared/types';
+import {
+  type FieldMetadataDefaultValue,
+  FieldMetadataType,
+} from 'twenty-shared/types';
 import { capitalize } from 'twenty-shared/utils';
 
-import { type FieldMetadataDefaultValue } from 'src/engine/metadata-modules/field-metadata/interfaces/field-metadata-default-value.interface';
 import { RelationType } from 'src/engine/metadata-modules/field-metadata/interfaces/relation-type.interface';
 
 import { generateRandomFieldValue } from 'src/engine/core-modules/open-api/utils/generate-random-field-value.util';

packages/twenty-server/src/engine/core-modules/open-api/utils/generate-random-field-value.util.ts

@@ -1,10 +1,11 @@
 import { faker } from '@faker-js/faker';
-import { FieldMetadataType } from 'twenty-shared/types';
+import {
+  type FieldMetadataDefaultValue,
+  FieldMetadataType,
+} from 'twenty-shared/types';
 import { assertUnreachable, isDefined } from 'twenty-shared/utils';
 import { v4 } from 'uuid';
 
-import { type FieldMetadataDefaultValue } from 'src/engine/metadata-modules/field-metadata/interfaces/field-metadata-default-value.interface';
-
 import { type FieldMetadataEntity } from 'src/engine/metadata-modules/field-metadata/field-metadata.entity';
 import { type FlatFieldMetadata } from 'src/engine/metadata-modules/flat-field-metadata/types/flat-field-metadata.type';
 
@@ -65,7 +66,7 @@ export const generateRandomFieldValue = ({
 
     case FieldMetadataType.CURRENCY: {
       return {
-        amountMicros: faker.number.int({ min: 100, max: 1_000 }) * 1_000_000,
+        amountMicros: `${faker.number.int({ min: 100, max: 1_000 }) * 1_000_000}`,
         currencyCode: 'EUR',
       };
     }
@@ -131,7 +132,6 @@ export const generateRandomFieldValue = ({
     case FieldMetadataType.ACTOR: {
       return {
         source: 'MANUAL',
-        context: {},
         name: faker.person.fullName(),
         workspaceMemberId: null,
       };