feat: Add "version" and "os" fields to rice database

- The rice database now includes new fields:
  - `version`: Represents the version of the rice entry.
  - `os`: Represents the operating system associated with the rice entry.
- These fields are required for all new rice entries.

refactor: Stop uploading rice.json to GitHub
- The `rice.json` file is no longer uploaded to GitHub during rice creation or updates.
- This reduces redundancy as all metadata is now managed directly in the database (Supabase).

fix: Improve exception handling with proper HTTP status codes
- Enhanced exception handling to align with standard HTTP status codes:
  - `BadRequestException` for validation errors.
  - `ConflictException` for duplicate entries.
  - `NotFoundException` for missing resources.
  - Generic `InternalServerErrorException` for unexpected errors.
- This ensures the API returns meaningful and accurate responses.

feat: Enhance rice download to act as a standard HTTP GET
- The `findOne` method now returns the raw content of the rice file directly as the response body.
- Removes unnecessary JSON wrappers, allowing the endpoint to behave like a typical HTTP GET request.
- Improved usability for clients consuming the API.

test/restclient/01_create_rice.http

@@ -11,7 +11,9 @@ POST {{baseUrl}}/rices
 Content-Type: application/json
 
 {
-  "name": "cool-zenrice-aurora",
+  "name": "cool-zenrice-aurora2",
+  "version": "1.0.0",
+  "os": "EndeavourOS x86_64",
   "content": "{'key':'value','description':'Example content'}"
 }
 

test/restclient/02_download_rice.http

@@ -1,4 +1,5 @@
 @baseUrl = http://localhost:3000
-@previous_slug = cool-zenrice-aurora-265e3881-f9de-4bbf-bb22-b9c37dbf04bc
+@previous_slug = cool-zenrice-aurora-e99096ae-00da-4d54-9a47-53b20eb57647
+
 
 GET {{baseUrl}}/rices/{{previous_slug}}

test/restclient/03_update_rice.http

@@ -1,6 +1,6 @@
 @baseUrl = http://localhost:3000
-@previous_slug = cool-zenrice-aurora2-1d1e74b3-8d6d-40ea-bd4f-a6f4ad893f88
-@previous_token = be4545f4-d92b-416c-8b3b-50cc9a49dee9
+@previous_slug = cool-zenrice-aurora-ef732cbc-fdde-4f76-b4e3-cff0ec8b6f39
+@previous_token = b406f962-5c51-43a9-8382-40e0983a46e7
 
 # {
 #     "key": "value",

test/restclient/04_delete_rice.http

@@ -1,6 +1,6 @@
 @baseUrl = http://localhost:3000
-@previous_slug = cool-zenrice-aurora-e8abd40d-8657-4ddd-99c5-912cced67497
-@previous_token = 2ce5c580-46e5-4a28-adff-30ce5662f29d
+@previous_slug = cool-zenrice-aurora2-b970a742-789c-4349-8a4d-da63c8bbe77d
+@previous_token = 03fbfdb4-d3a5-4d64-8740-feac7d32e7a8
 
 DELETE {{baseUrl}}/rices/{{previous_slug}}
 x-rices-token: {{previous_token}}