Add backend/README.txt

backend/README.txt

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+# AuthSec Spring Boot Backend - Feature Inventory
+
+This README summarizes what is already implemented in the attached Spring Boot backend codebase, with exact file locations for quick navigation.
+
+---
+
+## Application Bootstrapping
+- Main application entry:
+  - src/main/java/com/realnet/RealNetApp.java
+    - Enables Swagger2, JPA Auditing, Transaction Management, Caching
+    - Standard SpringBootServletInitializer + main()
+
+## Configuration
+- Application properties (ports, static resources, DB, mail, OAuth2, file upload, JWT):
+  - src/main/resources/application.properties
+    - server.port=9292
+    - spring.resources.static-locations for serving web assets
+    - MySQL datasource and Hibernate (ddl-auto=update)
+    - Mail sender configuration
+    - OAuth2 client registrations (Google, LinkedIn) scaffolding
+    - JWT token secret/expiry and authorized redirect URIs
+    - Multipart upload limits
+- Logging banner:
+  - src/main/resources/banner_txt.txt
+- Static web assets (Swagger UI, Redoc, compiled JS/CSS under public/):
+  - src/main/resources/public/**
+
+## Database Artifacts
+- Schema and seed (NorthWind-like demo + RN tables):
+  - src/main/resources/schema.sql
+    - Creates schemas/tables: user, customers, employees, orders, order_items, products
+    - Views: order_info, order_details, customer_orders, employee_orders
+    - Extra demo tables: RN_INSTRUCTOR, RN_EXT_FIELD_T
+- Optional data seed:
+  - src/main/resources/data.sql (present)
+
+## Gaurav_testing Module (CRUD example)
+- REST Controller:
+  - src/main/java/com/realnet/Gaurav_testing/Controllers/Gaurav_testing_Controller.java
+    - Base path: /Gaurav_testing
+    - Endpoints:
+      - POST   /Gaurav_testing                 → create
+      - GET    /Gaurav_testing                 → list all
+      - GET    /Gaurav_testing/{id}            → get by id
+      - PUT    /Gaurav_testing/{id}            → update by id
+      - DELETE /Gaurav_testing/{id}            → delete by id
+      - GET    /Gaurav_testing_custom          → first record (custom)
+      - POST   /Gaurav_testing_custom          → create (custom subset)
+- Service layer:
+  - src/main/java/com/realnet/Gaurav_testing/Services/Gaurav_testing_Service.java
+    - Business logic for CRUD + custom methods (findTopByOrderByIdAsc, selective save)
+- Repository layer:
+  - src/main/java/com/realnet/Gaurav_testing/Repository/Gaurav_testing_Repository.java
+    - Extends JpaRepository<Gaurav_testing_t, Integer>
+    - Finder: findTopByOrderByIdAsc()
+- Entity:
+  - src/main/java/com/realnet/Gaurav_testing/Entity/Gaurav_testing_t.java
+    - JPA @Entity with fields: id, name, email, mobno, address, pincode, description
+    - Lombok @Data for boilerplate
+
+## Swagger / API Docs
+- Swagger UI + assets are available under:
+  - src/main/resources/public/swagger/**
+- Swagger is enabled via @EnableSwagger2 in RealNetApp.
+
+## Security (Status)
+- No explicit Spring Security config class detected in the attached folder.
+- application.properties contains OAuth2 and JWT settings scaffolding; enable and wire security beans to activate.
+
+## Build Outputs (for reference only)
+- Compiled assets and classes under target/** (not source of truth).
+
+---
+
+## Quick Start
+1. Configure database credentials in src/main/resources/application.properties
+2. mvn spring-boot:run (or run RealNetApp from your IDE)
+3. API base URL: http://localhost:9292/
+4. Swagger UI: http://localhost:9292/swagger/index.html or /public/swagger/index.html
+
+## Notes
+- Static UI is served from classpath:/public by default; adjust spring.resources.static-locations if needed.
+- To enable security, add Spring Security configuration (filters, providers) and verify OAuth2/JWT property usage.