fixup: update CHANGELOG.md and openapi spec, return tm+json fetching …

…by fetch name

CHANGELOG.md

@@ -21,6 +21,10 @@
 - `check`: removed subcommands of `check` command, unifying both into the parent command
 - `repo`: reorganized commands that change repo config: renamed/created `config auth`, `config description`, and `config headers` commands
 
+### Fixed
+
+- return "application/tm+json" as MIME type when fetching TMs via API
+
 ## [v0.1.1]
 
 ### Added

api/tm-catalog.openapi.yaml

@@ -268,7 +268,7 @@ paths:
 
             **For the schema of the returned Thing Model see** [Thing Model JSON schema](https://github.com/w3c/wot-thing-description/blob/main/validation/tm-json-schema-validation.json)
           content:
-            application/json:
+            application/tm+json:
               schema:
                 type: object
         '400':
@@ -355,7 +355,7 @@ paths:
 
             **For the schema of the returned Thing Model see** [Thing Model JSON schema](https://github.com/w3c/wot-thing-description/blob/main/validation/tm-json-schema-validation.json)
           content:
-            application/json:
+            application/tm+json:
               schema:
                 type: object
         '400':

internal/app/http/handler.go

@@ -93,7 +93,7 @@ func (h *TmcHandler) GetThingModelByFetchName(w http.ResponseWriter, r *http.Req
 		return
 	}
 
-	HandleByteResponse(w, r, http.StatusOK, MimeJSON, data)
+	HandleByteResponse(w, r, http.StatusOK, MimeTMJSON, data)
 }
 
 // GetInventoryByID returns the metadata of a single TM by ID