Fix swing-seat summary to match CSV; add candidate anonymisation and 2026 margin-estimate disclosure

Fix tn_district_vote_share_2026.csv: correct DMK seats (59 not 79), fix district data — verified against tnelections2026.in

Fix tn_election_party_results_2011_2026.csv: correct DMK seats (59 not 79), fix district data — verified against tnelections2026.in

Add tn_youth_turnout_2026.csv

Add tn_district_vote_share_2026.csv

Add tn_tvk_booth_organisation_2026.csv

Add tn_swing_constituencies_2011_2026.csv

Add tn_election_party_results_2011_2026.csv

Add README.md

initial commit