Rename NONCONFORMITY to MINOR_NONCONFORMITY and add MAJOR_NONCONFORMITY

Support distinguishing between minor and major non-conformities in findings. Rename the existing NONCONFORMITY enum value to MINOR_NONCONFORMITY and add a new MAJOR_NONCONFORMITY value across all API layers (GraphQL, MCP, CLI) and the database.

Signed-off-by: Bryan Frimin <bryan@getprobo.com>

pkg/server/api/mcp/v1/specification.yaml

@@ -2312,7 +2312,8 @@ components:
     FindingKind:
       type: string
       enum:
-        - NONCONFORMITY
+        - MINOR_NONCONFORMITY
+        - MAJOR_NONCONFORMITY
         - OBSERVATION
         - EXCEPTION
       go.probo.inc/mcpgen/type: go.probo.inc/probo/pkg/coredata.FindingKind
@@ -2491,7 +2492,7 @@ components:
               anyOf:
                 - $ref: "#/components/schemas/FindingKind"
                 - type: "null"
-              description: Filter by finding kind (NONCONFORMITY, OBSERVATION, EXCEPTION). Defaults to null which returns all kinds.
+              description: Filter by finding kind (MINOR_NONCONFORMITY, MAJOR_NONCONFORMITY, OBSERVATION, EXCEPTION). Defaults to null which returns all kinds.
             status:
               anyOf:
                 - $ref: "#/components/schemas/FindingStatus"