docs(identite): 📝 add package README and LICENSE (#1468)

Author: douglasduteil

packages/identite/LICENSE

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+MIT License
+
+Copyright (c) 2024 Direction Interministérielle du Numérique - Gouvernement Français
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

packages/identite/README.md

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+# 🔐 @proconnect-gouv/proconnect.identite
+
+> Core identity management logic for ProConnect
+
+## ⚙️ Installation
+
+```bash
+npm install @proconnect-gouv/proconnect.identite
+```
+
+## 📖 Usage
+
+### Managers
+
+High-level business logic for certification, FranceConnect integration, organization, and user management.
+
+```typescript
+import { isOrganizationDirigeant } from "@proconnect-gouv/proconnect.identite/managers/certification";
+import { getOrganizationInfo } from "@proconnect-gouv/proconnect.identite/managers/organization";
+import { assignUserVerificationTypeToDomain } from "@proconnect-gouv/proconnect.identite/managers/user";
+```
+
+### Repositories
+
+Data access layer for email domains, organizations, and users.
+
+```typescript
+import {
+  findByEmail,
+  findById,
+  getByIdFactory,
+} from "@proconnect-gouv/proconnect.identite/repositories/user";
+import {
+  findByUserId,
+  linkUserToOrganization,
+} from "@proconnect-gouv/proconnect.identite/repositories/organization";
+import { addDomain } from "@proconnect-gouv/proconnect.identite/repositories/email-domain";
+```
+
+### Services
+
+Stateless business logic for organization validation and PostgreSQL utilities.
+
+```typescript
+import {
+  isEntrepriseUnipersonnelle,
+  isPublicService,
+} from "@proconnect-gouv/proconnect.identite/services/organization";
+import { hashToPostgresParams } from "@proconnect-gouv/proconnect.identite/services/postgres";
+```
+
+### Mappers
+
+Data transformation utilities for certification and organization data.
+
+```typescript
+import { fromSiret } from "@proconnect-gouv/proconnect.identite/mappers/organization";
+```
+
+### Types
+
+TypeScript type definitions for users, organizations, claims, and more.
+
+```typescript
+import type {
+  User,
+  Organization,
+  UserOrganizationLink,
+  EmailDomain,
+  FranceConnectUserInfo,
+} from "@proconnect-gouv/proconnect.identite/types";
+```
+
+### Data
+
+Raw data arrays for organization domain whitelists.
+
+```typescript
+import { domainsWhitelist } from "@proconnect-gouv/proconnect.identite/data/organization";
+```
+
+### Errors
+
+Custom error types for identity management operations.
+
+```typescript
+import {
+  InvalidCertificationError,
+  InvalidSiretError,
+  NotFoundError,
+  OrganizationNotActiveError,
+  OrganizationNotFoundError,
+  UserNotFoundError,
+  ModerationNotFoundError,
+} from "@proconnect-gouv/proconnect.identite/errors";
+```
+
+## 📊 Available Exports
+
+- **`/managers/certification`** - Organization certification and dirigeant validation
+- **`/managers/franceconnect`** - FranceConnect OIDC client integration
+- **`/managers/organization`** - Organization business logic
+- **`/managers/user`** - User business logic
+- **`/repositories/email-domain`** - Email domain data access
+- **`/repositories/organization`** - Organization data access
+- **`/repositories/user`** - User data access
+- **`/services/organization`** - Organization validation utilities
+- **`/services/postgres`** - PostgreSQL query utilities
+- **`/mappers/certification`** - Certification data transformation
+- **`/mappers/organization`** - Organization data transformation
+- **`/types`** - TypeScript type definitions
+- **`/data/organization`** - Organization reference data
+- **`/errors`** - Custom error types
+
+## 📖 License
+
+[MIT](./LICENSE)