feat(api): implement personalities CRUD API (#537)

Co-authored-by: Jason Woltje <jason@diversecanvas.com>
Co-committed-by: Jason Woltje <jason@diversecanvas.com>

apps/api/src/personalities/dto/create-personality.dto.ts

@@ -1,59 +1,38 @@
-import {
-  IsString,
-  IsOptional,
-  IsBoolean,
-  IsNumber,
-  IsInt,
-  IsUUID,
-  MinLength,
-  MaxLength,
-  Min,
-  Max,
-} from "class-validator";
+import { FormalityLevel } from "@prisma/client";
+import { IsString, IsEnum, IsOptional, IsBoolean, MinLength, MaxLength } from "class-validator";
 
 /**
- * DTO for creating a new personality/assistant configuration
+ * DTO for creating a new personality
+ * Field names match the frontend API contract from @mosaic/shared Personality type.
  */
 export class CreatePersonalityDto {
-  @IsString()
-  @MinLength(1)
-  @MaxLength(100)
-  name!: string; // unique identifier slug
-
-  @IsString()
-  @MinLength(1)
-  @MaxLength(200)
-  displayName!: string; // human-readable name
+  @IsString({ message: "name must be a string" })
+  @MinLength(1, { message: "name must not be empty" })
+  @MaxLength(255, { message: "name must not exceed 255 characters" })
+  name!: string;
 
   @IsOptional()
-  @IsString()
-  @MaxLength(1000)
+  @IsString({ message: "description must be a string" })
+  @MaxLength(2000, { message: "description must not exceed 2000 characters" })
   description?: string;
 
-  @IsString()
-  @MinLength(10)
-  systemPrompt!: string;
+  @IsString({ message: "tone must be a string" })
+  @MinLength(1, { message: "tone must not be empty" })
+  @MaxLength(100, { message: "tone must not exceed 100 characters" })
+  tone!: string;
+
+  @IsEnum(FormalityLevel, { message: "formalityLevel must be a valid FormalityLevel" })
+  formalityLevel!: FormalityLevel;
+
+  @IsString({ message: "systemPromptTemplate must be a string" })
+  @MinLength(1, { message: "systemPromptTemplate must not be empty" })
+  systemPromptTemplate!: string;
 
   @IsOptional()
-  @IsNumber()
-  @Min(0)
-  @Max(2)
-  temperature?: number; // null = use provider default
-
-  @IsOptional()
-  @IsInt()
-  @Min(1)
-  maxTokens?: number; // null = use provider default
-
-  @IsOptional()
-  @IsUUID("4")
-  llmProviderInstanceId?: string; // FK to LlmProviderInstance
-
-  @IsOptional()
-  @IsBoolean()
+  @IsBoolean({ message: "isDefault must be a boolean" })
   isDefault?: boolean;
 
   @IsOptional()
-  @IsBoolean()
-  isEnabled?: boolean;
+  @IsBoolean({ message: "isActive must be a boolean" })
+  isActive?: boolean;
 }

apps/api/src/personalities/dto/index.ts

@@ -1,2 +1,3 @@
 export * from "./create-personality.dto";
 export * from "./update-personality.dto";
+export * from "./personality-query.dto";

apps/api/src/personalities/dto/personality-query.dto.ts

@@ -0,0 +1,12 @@
+import { IsBoolean, IsOptional } from "class-validator";
+import { Transform } from "class-transformer";
+
+/**
+ * DTO for querying/filtering personalities
+ */
+export class PersonalityQueryDto {
+  @IsOptional()
+  @IsBoolean({ message: "isActive must be a boolean" })
+  @Transform(({ value }) => value === "true" || value === true)
+  isActive?: boolean;
+}

apps/api/src/personalities/dto/update-personality.dto.ts

@@ -1,62 +1,42 @@
-import {
-  IsString,
-  IsOptional,
-  IsBoolean,
-  IsNumber,
-  IsInt,
-  IsUUID,
-  MinLength,
-  MaxLength,
-  Min,
-  Max,
-} from "class-validator";
+import { FormalityLevel } from "@prisma/client";
+import { IsString, IsEnum, IsOptional, IsBoolean, MinLength, MaxLength } from "class-validator";
 
 /**
- * DTO for updating an existing personality/assistant configuration
+ * DTO for updating an existing personality
+ * All fields are optional; only provided fields are updated.
  */
 export class UpdatePersonalityDto {
   @IsOptional()
-  @IsString()
-  @MinLength(1)
-  @MaxLength(100)
-  name?: string; // unique identifier slug
+  @IsString({ message: "name must be a string" })
+  @MinLength(1, { message: "name must not be empty" })
+  @MaxLength(255, { message: "name must not exceed 255 characters" })
+  name?: string;
 
   @IsOptional()
-  @IsString()
-  @MinLength(1)
-  @MaxLength(200)
-  displayName?: string; // human-readable name
-
-  @IsOptional()
-  @IsString()
-  @MaxLength(1000)
+  @IsString({ message: "description must be a string" })
+  @MaxLength(2000, { message: "description must not exceed 2000 characters" })
   description?: string;
 
   @IsOptional()
-  @IsString()
-  @MinLength(10)
-  systemPrompt?: string;
+  @IsString({ message: "tone must be a string" })
+  @MinLength(1, { message: "tone must not be empty" })
+  @MaxLength(100, { message: "tone must not exceed 100 characters" })
+  tone?: string;
 
   @IsOptional()
-  @IsNumber()
-  @Min(0)
-  @Max(2)
-  temperature?: number; // null = use provider default
+  @IsEnum(FormalityLevel, { message: "formalityLevel must be a valid FormalityLevel" })
+  formalityLevel?: FormalityLevel;
 
   @IsOptional()
-  @IsInt()
-  @Min(1)
-  maxTokens?: number; // null = use provider default
+  @IsString({ message: "systemPromptTemplate must be a string" })
+  @MinLength(1, { message: "systemPromptTemplate must not be empty" })
+  systemPromptTemplate?: string;
 
   @IsOptional()
-  @IsUUID("4")
-  llmProviderInstanceId?: string; // FK to LlmProviderInstance
-
-  @IsOptional()
-  @IsBoolean()
+  @IsBoolean({ message: "isDefault must be a boolean" })
   isDefault?: boolean;
 
   @IsOptional()
-  @IsBoolean()
-  isEnabled?: boolean;
+  @IsBoolean({ message: "isActive must be a boolean" })
+  isActive?: boolean;
 }