Update README

README.md

@@ -99,6 +99,9 @@ Loads the onboarding screen: scheme/slider text configuration and the user's exi
 
 The frontend sends **no body fields** to erangel for this endpoint. All common fields below are injected by erangel.
 
+<details>
+<summary>Request Body JSON</summary>
+
 ```json
 {
   "client": "BRIMON",                              // [EG]
@@ -110,10 +113,15 @@ The frontend sends **no body fields** to erangel for this endpoint. All common f
 }
 ```
 
+</details>
+
 Struct: `usecase.OnboardingRequest` (`internal/interfaces/usecase/loa.go:51`)
 
 ### Response Body (200)
 
+<details>
+<summary>Response Body JSON</summary>
+
 ```json
 {
   "code": "00",
@@ -299,6 +307,8 @@ Struct: `usecase.OnboardingRequest` (`internal/interfaces/usecase/loa.go:51`)
 }
 ```
 
+</details>
+
 `data` is `usecase.OnboardingResponse`.
 
 `admin_fee_note` carries the admin fee info banner shown in the scheme bottom sheet (title: "Ketentuan Biaya Admin", content: "1% dari total pinjaman (min. Rp200.000)").
@@ -307,6 +317,9 @@ Each `scheme` item now only contains `tenor` and `bunga` (removed `nominal_trans
 
 Each item in `processing`/`rejected`/`approved.list` is `usecase.Application`:
 
+<details>
+<summary>Application item schema</summary>
+
 ```json
 {
   "ticket_no": "...",
@@ -346,6 +359,8 @@ Each item in `processing`/`rejected`/`approved.list` is `usecase.Application`:
 }
 ```
 
+</details>
+
 **`status` / `status_string` mapping:**
 
 | `status` | `status_string` | Description |
@@ -382,6 +397,9 @@ Lists all the credit cards the user owns that are eligible for loan-on-app.
 
 The frontend sends **no body fields** to erangel for this endpoint. All common fields below are injected by erangel.
 
+<details>
+<summary>Request Body JSON</summary>
+
 ```json
 {
   "client": "BRIMON",                              // [EG]
@@ -393,10 +411,15 @@ The frontend sends **no body fields** to erangel for this endpoint. All common f
 }
 ```
 
+</details>
+
 Struct: `usecase.LoaListRequest` (`internal/interfaces/usecase/loa.go:186`)
 
 ### Response Body (200)
 
+<details>
+<summary>Response Body JSON</summary>
+
 ```json
 {
   "code": "00",
@@ -423,6 +446,8 @@ Struct: `usecase.LoaListRequest` (`internal/interfaces/usecase/loa.go:186`)
 }
 ```
 
+</details>
+
 `data` is `usecase.LoaListResponse`. When the user has no eligible cards, `code` is `01` and `account` is an empty array (see `list.go:83-86`).
 
 ### Error Codes
@@ -456,13 +481,21 @@ Loads the loan form: source accounts, T&C text, product type, min/max loan range
 | `channel_id` | string | [EG] | yes | `NBMB` |
 | `request_id` | string | [DM] | no | overwritten by doom with process ID |
 
+<details>
+<summary>Frontend → Erangel</summary>
+
 ```json
-// Frontend → Erangel
 {
   "card_token": "f104d035a92652987b8c82dd91cb13aa1f403d686dcbc3844d261cc8416de9b0"
 }
+```
 
-// Erangel → Doom (constructed in Doom.php:81)
+</details>
+
+<details>
+<summary>Erangel → Doom (constructed in Doom.php:81)</summary>
+
+```json
 {
   "client": "BRIMON",
   "request_refnum": "123456789154",
@@ -474,10 +507,15 @@ Loads the loan form: source accounts, T&C text, product type, min/max loan range
 }
 ```
 
+</details>
+
 Struct: `usecase.LoaFormRequest` (`internal/interfaces/usecase/loa.go:20`)
 
 ### Response Body (200)
 
+<details>
+<summary>Response Body JSON</summary>
+
 ```json
 {
   "code": "00",
@@ -509,6 +547,8 @@ Struct: `usecase.LoaFormRequest` (`internal/interfaces/usecase/loa.go:20`)
 }
 ```
 
+</details>
+
 `data` is `usecase.LoaFormResponse` (`internal/interfaces/usecase/loa.go:30`).
 
 ### Error Codes
@@ -546,14 +586,22 @@ Returns a list of loan simulations (tenor / monthly payment / admin fee) for a g
 | `channel_id` | string | [EG] | yes | `NBMB` |
 | `request_id` | string | [DM] | no | overwritten by doom with process ID |
 
+<details>
+<summary>Frontend → Erangel</summary>
+
 ```json
-// Frontend → Erangel
 {
   "card_token": "f104d035a92652987b8c82dd91cb13aa1f403d686dcbc3844d261cc8416de9b0",
   "amount": 5000
 }
+```
 
-// Erangel → Doom (constructed in Doom.php:95)
+</details>
+
+<details>
+<summary>Erangel → Doom (constructed in Doom.php:95)</summary>
+
+```json
 {
   "client": "BRIMON",
   "request_refnum": "123456789154",
@@ -566,10 +614,15 @@ Returns a list of loan simulations (tenor / monthly payment / admin fee) for a g
 }
 ```
 
+</details>
+
 Struct: `usecase.LoaTermRequest` (`internal/interfaces/usecase/loa.go:104`)
 
 ### Response Body (200)
 
+<details>
+<summary>Response Body JSON</summary>
+
 ```json
 {
   "code": "00",
@@ -594,6 +647,8 @@ Struct: `usecase.LoaTermRequest` (`internal/interfaces/usecase/loa.go:104`)
 }
 ```
 
+</details>
+
 `data` is `usecase.LoaTermResponse` (`internal/interfaces/usecase/loa.go:115`).
 
 ### Error Codes
@@ -625,13 +680,21 @@ Sends a one-time password to the user's registered phone number for the loan-on-
 | `channel_id` | string | [EG] | yes | `NBMB` |
 | `request_id` | string | [DM] | no | overwritten by doom with process ID |
 
+<details>
+<summary>Frontend → Erangel</summary>
+
 ```json
-// Frontend → Erangel
 {
   "otp_type": "WA"
 }
+```
 
-// Erangel → Doom
+</details>
+
+<details>
+<summary>Erangel → Doom</summary>
+
+```json
 {
   "client": "BRIMON",
   "request_refnum": "123456789154",
@@ -643,10 +706,15 @@ Sends a one-time password to the user's registered phone number for the loan-on-
 }
 ```
 
+</details>
+
 Struct: `usecase.LoaSendOtpRequest` (`internal/interfaces/usecase/loa.go:177`)
 
 ### Response Body (200)
 
+<details>
+<summary>Response Body JSON</summary>
+
 ```json
 {
   "code": "00",
@@ -661,6 +729,8 @@ Struct: `usecase.LoaSendOtpRequest` (`internal/interfaces/usecase/loa.go:177`)
 }
 ```
 
+</details>
+
 If `otp_type=loanInApp` is disabled in cipher config, doom returns `code: "00"` with `data: { "skip": true }` — frontend skips OTP entry and proceeds to `/submit-otp` without an OTP code.
 
 ### Error Codes
@@ -718,15 +788,23 @@ Validates the OTP the user received via `/send-otp`. On success the frontend pro
 | `channel_id` | string | [EG] | yes | `NBMB` |
 | `request_id` | string | [DM] | no | overwritten by doom with process ID |
 
+<details>
+<summary>Frontend → Erangel</summary>
+
 ```json
-// Frontend → Erangel
 {
   "server_id": "abc123",
   "otp": "123456",
   "otp_type": "WA"
 }
+```
 
-// Erangel → Doom
+</details>
+
+<details>
+<summary>Erangel → Doom</summary>
+
+```json
 {
   "client": "BRIMON",
   "request_refnum": "123456789154",
@@ -740,10 +818,15 @@ Validates the OTP the user received via `/send-otp`. On success the frontend pro
 }
 ```
 
+</details>
+
 Struct: `usecase.LoaSubmitOtpRequest` (`internal/interfaces/usecase/loa.go:TBD`)
 
 ### Response Body (200)
 
+<details>
+<summary>Response Body JSON</summary>
+
 ```json
 {
   "code": "00",
@@ -754,6 +837,8 @@ Struct: `usecase.LoaSubmitOtpRequest` (`internal/interfaces/usecase/loa.go:TBD`)
 }
 ```
 
+</details>
+
 No data payload on success — frontend simply checks `code == "00"` before proceeding to `/submit`.
 
 ### Error Codes
@@ -824,8 +909,10 @@ Final step: submits the loan to Brigate, persists to DB, and returns the new app
 | `channel_id` | string | [EG] | yes | `NBMB` |
 | `request_id` | string | [DM] | no | overwritten by doom with process ID |
 
+<details>
+<summary>Frontend → Erangel</summary>
+
 ```json
-// Frontend → Erangel
 {
   "card_token": "f104d035a92652987b8c82dd91cb13aa1f403d686dcbc3844d261cc8416de9b0",
   "amount": 5000000,
@@ -838,8 +925,14 @@ Final step: submits the loan to Brigate, persists to DB, and returns the new app
   "admin_fee": 50000,
   "pin": "123456"
 }
+```
 
-// Erangel → Doom (pin consumed by erangel, not forwarded)
+</details>
+
+<details>
+<summary>Erangel → Doom (pin consumed by erangel, not forwarded)</summary>
+
+```json
 {
   "client": "BRIMON",
   "request_refnum": "123456789154",
@@ -859,10 +952,15 @@ Final step: submits the loan to Brigate, persists to DB, and returns the new app
 }
 ```
 
+</details>
+
 Struct: `usecase.LoaSubmitRequest` (`internal/interfaces/usecase/loa.go:131`)
 
 ### Response Body (200)
 
+<details>
+<summary>Response Body JSON</summary>
+
 ```json
 {
   "code": "00",
@@ -908,6 +1006,8 @@ Struct: `usecase.LoaSubmitRequest` (`internal/interfaces/usecase/loa.go:131`)
 }
 ```
 
+</details>
+
 `data` is `usecase.LoaSubmitResponse` (`internal/interfaces/usecase/loa.go:151`).
 
 ### Error Codes
@@ -925,10 +1025,15 @@ Struct: `usecase.LoaSubmitRequest` (`internal/interfaces/usecase/loa.go:131`)
 
 Health check. Defined in `internal/delivery/http/http.go:47`. Returns literal `"ok"`.
 
+<details>
+<summary>Response body</summary>
+
 ```json
 "ok"
 ```
 
+</details>
+
 ---
 
 ## Source Code References