refactor: extract shared apiclient, decouple Syncer from Config, fix compareRefs

fix: security hardening and maintainability improvements

ci: fix test workflow branch to master

refactor: extract CLI logic to internal/app, add more tests

test: improve test coverage and quality

test: add unit tests with be library

refactor: move DeletePullRefs to Platform interface

docs: update README for end users

docs: update README with Codeberg support

feat: add Codeberg platform support

fix: ListDiff now checks all destination platforms instead of only first

fix: add contents write permission to release workflow

chore: add version flag and fix README

Update README.md

Update README.md

Initial commit

exercise 5-4

exercise 5-3

exercise 5-3

add chapter_5

rename script1 to chapter_3

rus lng

graphics

na.value

Graphics

lec2 created

Merge branch 'master' of github.com:ivaninkv/texts

vs code

Set theme jekyll-theme-minimal

Set theme jekyll-theme-cayman

update index