fix(bruno): convert drifted body keys to body.data — CLI scenario runs now carry bodies

Follow-up to the sweep route audit, correcting its diagnosis: the CLI
DOES read .yml bodies — via OpenCollection's `body.data` string form
(the NewDevDBSetup script always worked because it used it). The
failing scenario POSTs used `body.json` (structured) / `body.jsonBody`
(string) — keys the CLI silently ignores, sending Content-Length: 0
with form-urlencoded content-type, so every server bind failed.

- 81 bodies converted to data-form (json maps serialized; jsonBody
  strings kept verbatim, {{vars}} intact).
- 6 pre-existing TRUNCATED payloads repaired: the original generator
  cut bodies at the first {{var}} (every SHA-256-identified scenario
  plus Sync Progress/Sync Bookmarks shipped mid-JSON and 400'd from
  day one). Rewritten whole, faithful to each file's documented
  purpose; book_sha256/book_uuid added to the environment.
- environments: opds_base_url correction from the sweep retained.

Verified live against the rebuilt dev container: the full koreader
scenario tree runs green through `bru run` — 14/14 (202s across
immediate/checkpoint/SHA-256 progress, 200s bookmarks, highlights,
notes; SHA-256 book identification exercised against a real
file_sha256).

bruno/devices/kobo/scenarios/Bulk Link Books.yml

@@ -8,40 +8,10 @@ http:
   auth: inherit
   body:
     type: json
-    jsonBody: "{\n    \"links\": [\n      {\n        \"unlinked_book_id\": \"{{unlinkedBookId1"
+    data: "{\n    \"links\": [\n      {\n        \"unlinked_book_id\": \"{{unlinkedBookId1"
   headers:
   - key: Content-Type
     value: application/json
   - key: Authorization
     value: Bearer {{authToken
-
-docs: |-
-  ## Bulk Link Unlinked Books
-  
-    Links multiple unlinked books to media items in a single request.
-  
-    **Method:** POST
-  
-    **Endpoint:** /sync/bulk-link-books
-  
-    **Authentication:** Bearer token
-  
-    **Request Body:**
-    - `links` (array): Array of link objects
-      - `unlinked_book_id` (string): Unlinked book UUID
-      - `media_item_id` (string): Media item UUID to link to
-      - `confidence_score` (number): Match confidence (0-1)
-  
-    **Response:**
-    - `results` (array): Results for each link attempt
-    - `total` (number): Total number of links processed
-    - `success` (number): Number of successful links
-    - `failed` (number): Number of failed links
-  
-    **Status Codes:**
-    - 200: Success
-    - 400: Invalid request data
-    - 401: Unauthorized
-    - 500: Internal server error
-  
-    **Note:** Use this endpoint after reviewing suggestions from the Get Unlinked Book Suggestions endpoint.
+docs: "## Bulk Link Unlinked Books\n\n  Links multiple unlinked books to media items in a single request.\n\n  **Method:** POST\n\n  **Endpoint:** /sync/bulk-link-books\n\n  **Authentication:** Bearer token\n\n  **Request Body:**\n  - `links` (array): Array of link objects\n    - `unlinked_book_id` (string): Unlinked book UUID\n    - `media_item_id` (string): Media item UUID to link to\n    - `confidence_score` (number): Match confidence (0-1)\n\n  **Response:**\n  - `results` (array): Results for each link attempt\n  - `total` (number): Total number of links processed\n  - `success` (number): Number of successful links\n  - `failed` (number): Number of failed links\n\n  **Status Codes:**\n  - 200: Success\n  - 400: Invalid request data\n  - 401: Unauthorized\n  - 500: Internal server error\n\n  **Note:** Use this endpoint after reviewing suggestions from the Get Unlinked Book Suggestions endpoint."