fix: improve progress update frequency and synchronization

fix: improve task progress snackbar display and auto-refresh logic

feat: add progress callbacks to collection and analysis functions

fix: add thread-safe task status updates with lock

fix: remove incorrect logger usage

fix: improve scheduled task progress display and auto-refresh logic

fix: add real-time task status polling for scheduled tasks

feat: add progress tracking and execution count for scheduled tasks

fix: update .gitignore to allow frontend/web/manifest.json

chore: remove tracked files not in .gitignore - keep only core code

Initial commit

chore: fix gitignore and remove tracked local files

Initial commit: TrendPulse public opinion analysis system