Feature/bitcaster integration

[roma-valor]

Legal Boilerplate

AB#315502

Adds Bitcaster notification support. When data is imported, validated, or pushed to HOPE, the app now sends an async event to Bitcaster via a Celery task.

• New country_workspace.notifications app — BitcasterClient (REST API wrapper), Django signals (data_imported, validation_completed, rdi_pushed, rdp_pushed), signal handlers that run Celery tasks.
• Bitcaster configuration — five new BITCASTER_* settings wired through SmartEnv and settings.py.
• Signal emission — data_imported_signal fired after successful batch imports from Aurora, Kobo, and RDI sources; rdi_pushed_signal / rdp_pushed_signal fired on HOPE push success or failure.
• Chunked validation completion tracking — create_validation_jobs now assigns a shared validation_run_id and validation_total_chunks to every chunk job.

[codecov]

Codecov Report

❌ Patch coverage is 98.71795% with 2 lines in your changes missing coverage. Please review.
✅ Project coverage is 96.95%. Comparing base (27f29ce) to head (68956f4).
⚠️ Report is 2 commits behind head on develop.

Files with missing lines	Patch %	Lines
src/country_workspace/notifications/notifier.py	88.88%	0 Missing and 1 partial ⚠️
src/country_workspace/notifications/tasks.py	95.65%	0 Missing and 1 partial ⚠️

Additional details and impacted files

@@            Coverage Diff            @@
##           develop     #394    +/-   ##
=========================================
  Coverage    96.94%   96.95%            
=========================================
  Files          237      244     +7     
  Lines         9756     9910   +154     
  Branches      1081     1090     +9     
=========================================
+ Hits          9458     9608   +150     
- Misses         142      143     +1     
- Partials       156      159     +3     

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[domdinicola]

@roma-valor pls fix conflicts

[saxix]

BITCASTER_ORGANIZATION_SLUG = "unicef"
BITCASTER_PROJECT_SLUG = "hope"

[roma-valor]

Fixed

[saxix]

• check bitcaster_sdk, it has a client and a retry mechanism, maybe we save some code
• rdi_pushed_signal seems too "flexible", this flexibility can increase the filtering cost on BC side, (es. target and rdp_id seem optionals) maybe 2 signals?

[ntrncic]

@roma-valor description of PR please.