fix(workflow): correct reply_ts path in slack-mention-handler

ci: add GitHub Actions workflow for lint, format, and test

chore: remove unused toml config files

feat(context): improve context awareness with relative time display

feat(config): add timezone support using TZ environment variable

docs(workflows): add n8n screenshots and sync node positions

fix(workflow): use correct ts path from Slack node response

fix(workflow): improve Slack context disambiguation in prompt

refactor(workflow): replace hardcoded values with placeholders

fix(executor): auto-create isolated directory at execution time

fix(workflow): use valid Slack emoji names for reactions

docs: add Daily Reporter to documentation

feat(workflow): add Daily Reporter workflow

refactor(dashboard): update structured output fields for new MR review schema

fix(dashboard): adjust agent grid breakpoint for better card width