New test classes:
- TestIsMatchMarket: 5 tests for is_match_market() classification
- TestGetMlMarket: 5 tests for get_ml_market() and get_ml_volume()
- TestFilterEvents: 5 tests for filter_events() and sort_events()
- TestFetchAllPages: 4 tests for fetch_all_pages() early-exit logic
- TestBrowseEvents: 5 tests for browse_events() sort_by parameter
Total: 24 new tests (62 total, all passing)
- fetch_page: replace subprocess.run(curl) with urllib (stdlib, cleaner)
- fetch_all_pages: add matches_max/non_matches_max params for early-exit.
When both are set, stop fetching once quotas are satisfied.
- browse_events: add sort_by param (None='fast' early-exit, 'volume'=full fetch+sort).
Early-exit only used when sort_by=None (no client-side sort needed).
- Remove subprocess import (no longer needed after migration)
Replace duplicate inline formatting with unified format+render pipeline.
New functions:
- format_match_event(e) — canonical dict for match events
- format_non_match_event(e) — canonical dict for non-match events
- render_match_lines(event_dict, i, mode) — text/HTML renderer
- render_non_match_lines(event_dict, i, mode) — text/HTML renderer
- send_chunked(...) — extracted Telegram chunking logic
Also fixed send_chunked() chunking bug: the original '. ' in line
check never matched event lines (period is followed by '</b>' not space).
Tests: 38 total, all passing.
Fixes: #14
