feat: rename RICH_TEXT_V2 → RICH_TEXT in codebase (keep DB value) (#18628)

## Summary

- Renames the `FieldMetadataType` enum key from `RICH_TEXT_V2` to
`RICH_TEXT` across the entire codebase, while keeping the underlying
string value as `'RICH_TEXT_V2'` to maintain PostgreSQL database
compatibility
- Renames all related types, guards, hooks, components, and files from
`*RichTextV2*` / `*rich-text-v2*` to `*RichText*` / `*rich-text*` (e.g.
`FormRichTextV2FieldInput` → `FormRichTextFieldInput`,
`isFieldRichTextV2` → `isFieldRichText`)
- Updates generated files (GraphQL schema, SDK types) to use the new key
while preserving the `RICH_TEXT_V2` string value for DB/API layer
- Updates i18n locale files, test snapshots, and integration tests to
reflect the rename

## Context

The legacy `RICH_TEXT` (V1) field type was deprecated and migrated to
`TEXT` in a previous PR (#18623). With V1 gone, the `RICH_TEXT_V2`
naming is no longer necessary — `RICH_TEXT` is now the canonical name.
The DB enum value stays `'RICH_TEXT_V2'` to avoid confusion with the
just-deprecated V1 type and to prevent a database migration.

## Test plan

- [x] `twenty-server` typecheck passes
- [x] `twenty-front` typecheck passes (only pre-existing Apollo client
errors remain)
- [x] `twenty-server` lint passes
- [x] `twenty-front` lint passes
- [x] `twenty-shared` build passes
- [ ] CI passes


Made with [Cursor](https://cursor.com)

packages/twenty-server/test/integration/graphql/suites/inputs-validation/create-validation/__snapshots__/rich-text-field-create-input-validation.integration-spec.ts.snap

@@ -0,0 +1,5 @@
+// Jest Snapshot v1, https://jestjs.io/docs/snapshot-testing
+
+exports[`Create input validation - RICH_TEXT Gql create input - failure RICH_TEXT - should fail with : {"richTextField":"not-a-rich-text"} 1`] = `"Expected type "RichTextCreateInput" to be an object."`;
+
+exports[`Create input validation - RICH_TEXT Rest create input - failure RICH_TEXT - should fail with : {"richTextField":"not-a-rich-text"} 1`] = `"["Invalid rich text v2 value 'not-a-rich-text' for field \\"richTextField\\" - Should be an object"]"`;

packages/twenty-server/test/integration/graphql/suites/inputs-validation/create-validation/__snapshots__/rich-text-v2-field-create-input-validation.integration-spec.ts.snap

@@ -1,5 +0,0 @@
-// Jest Snapshot v1, https://jestjs.io/docs/snapshot-testing
-
-exports[`Create input validation - RICH_TEXT_V2 Gql create input - failure RICH_TEXT_V2 - should fail with : {"richTextV2Field":"not-a-rich-text"} 1`] = `"Expected type "RichTextV2CreateInput" to be an object."`;
-
-exports[`Create input validation - RICH_TEXT_V2 Rest create input - failure RICH_TEXT_V2 - should fail with : {"richTextV2Field":"not-a-rich-text"} 1`] = `"["Invalid rich text v2 value 'not-a-rich-text' for field \\"richTextV2Field\\" - Should be an object"]"`;

packages/twenty-server/test/integration/graphql/suites/inputs-validation/create-validation/constants/failing-create-input-by-field-metadata-type.constant.ts

@@ -224,10 +224,10 @@ export const failingCreateInputByFieldMetadataType: {
       },
     },
   ],
-  [FieldMetadataType.RICH_TEXT_V2]: [
+  [FieldMetadataType.RICH_TEXT]: [
     {
       input: {
-        richTextV2Field: 'not-a-rich-text',
+        richTextField: 'not-a-rich-text',
       },
     },
   ],

packages/twenty-server/test/integration/graphql/suites/inputs-validation/create-validation/constants/successful-create-input-by-field-metadata-type.constant.ts

@@ -369,18 +369,18 @@ export const successfulCreateInputByFieldMetadataType: {
       },
     },
   ],
-  [FieldMetadataType.RICH_TEXT_V2]: [
+  [FieldMetadataType.RICH_TEXT]: [
     {
       input: {
-        richTextV2Field: {
+        richTextField: {
           blocknote: 'test',
           markdown: 'test',
         },
       },
       validateInput: (record: Record<string, any>) => {
         return (
-          record.richTextV2Field.blocknote === 'test' &&
-          record.richTextV2Field.markdown === 'test'
+          record.richTextField.blocknote === 'test' &&
+          record.richTextField.markdown === 'test'
         );
       },
     },

packages/twenty-server/test/integration/graphql/suites/inputs-validation/create-validation/rich-text-field-create-input-validation.integration-spec.ts

@@ -8,7 +8,7 @@ import { destroyManyObjectsMetadata } from 'test/integration/graphql/suites/inpu
 import { setupTestObjectsWithAllFieldTypes } from 'test/integration/graphql/suites/inputs-validation/utils/setup-test-objects-with-all-field-types.util';
 import { FieldMetadataType } from 'twenty-shared/types';
 
-const FIELD_METADATA_TYPE = FieldMetadataType.RICH_TEXT_V2;
+const FIELD_METADATA_TYPE = FieldMetadataType.RICH_TEXT;
 
 const successfulTestCases =
   successfulCreateInputByFieldMetadataType[FIELD_METADATA_TYPE];