Set cloud sync to daily interval

chore(release): bump version to 0.3.5

test: add response header coverage

feat: forward upstream response headers

chore(qwen): update runtime headers

feat(qwen): add Qwen 3.5 Plus model

feat(source-sync): add start_since override

fix(source-sync): default main and detect branch

Download v2rayA Dockerfile and update scripts

Rename v2ray to v2ray.yml

Add GitHub Actions workflow for v2rayA Docker build

fix(ci): prevent poll window loss on paging/fetch failures

ci: make source commit polling windowed and configurable

feat(workflow): calculate SINCE_DATE from last sync

feat(workflow): add since date filter for commits