Moved specific routes (/blockchain, /debug/all, /active, /completed, /upcoming)
BEFORE generic routes (/{election_id}, /{election_id}/results, etc) so that
specific paths are matched first and don't get caught by the {election_id}
path parameter matcher.
Also removed duplicate /completed and /upcoming route definitions.
Routes now in correct order:
1. Specific paths: /debug/all, /active, /blockchain
2. Specific subpaths: /{id}/blockchain-verify, /{id}/candidates, /{id}/results
3. Generic: /{id}
9f5aee8b93