chore: release v0.6.15

chore: release v0.6.14

chore: release v0.6.13

Co-Authored-By: Claude Sonnet 4.6 <[email protected]>

chore: release v0.6.12

chore: release v0.6.11

chore: release v0.6.10

chore: release v0.6.9

chore: release v0.6.8

chore: release v0.6.7

chore: release v0.6.6 (heygen-com#818)