feat!: generalize script by removing organizational metadata

Remove Phase class, organizational metadata blocks, and unused project fields. Update configuration
to use 'default_grants' and simplify PI usage to fallback corresponding author determination only.

BREAKING CHANGES: - Remove 'phase' and 'project' fields from configuration - Use 'default_grants'
instead of 'default_grant' - Generate only standard Dataverse citation metadata

config_example.yaml

@@ -1,23 +1,25 @@
-default_grant:
+dataverse:
+  url: "https://your-dataverse-instance.org"
+  api_token: "your-api-token-here"
+  dataverse: "your-dataverse-alias"
+  auth_user: "your-username"
+  auth_password: "your-password"
+
+default_grants:
   - funder: "Awesome Funding Agency"
     id: "ABC12345"
-
-phase:
-  "Phase 1 (2021/2025)":
-    start: 2021
-    end: 2025
+  - funder: "Another Funding Agency"
+    id: "DEF67890"
 
 pis:
   - family_name: "Doe"
     given_name: "Jon"
     orcid: "0000-0000-0000-0000"
-    email: "jon.doe@some-university.edu"
+    email: "jon.doe@iana.org"
     affiliation: "Institute of Science, Some University"
-    project: ["Project A01"]
 
   - family_name: "Doe"
     given_name: "Jane"
     orcid: "0000-0000-0000-0001"
-    email: "jane.doe@some-university.edu"
+    email: "jane.doe@iana.org"
     affiliation: "Institute of Science, Some University"
-    project: ["Project A02"]