Group F4d (epic #2277, parent #2352). Migrated the ad-hoc BrowserFetcher
construction in providers/domclick/serp.py::fetch_city to the shared
build_browser_fetcher(config, source) helper from Foundation (#2358).
Scope actually touched:
- serp.py: replaced the local BrowserFetcher(source="domclick", endpoint=...)
construction with build_browser_fetcher(self._config, "domclick").
- detail.py: NO changes needed. Grepped for BrowserFetcher(/AsyncSession(/
curl_cffi and found none - fetch_detail() receives an already-constructed
browser_fetcher from the caller (orchestrator owns the session lifecycle,
per its own module docstring), so there was nothing to migrate here.
Caveat verified (same class as avito, per issue instructions): the old
call site omitted use_pool, so it implicitly defaulted to False via the
BrowserFetcher class default. build_browser_fetcher(config, source) reads
use_pool=config.use_proxy_pool_browser instead - a real difference in the
value passed in. However this call site does not pass proxy_provider
(stays the default None), and BrowserFetcher._pool_proxy computes
`use_pool and proxy_provider is not None` before ever using the pool - so
with proxy_provider=None the effective behavior is identical regardless
of what use_pool evaluates to (confirmed by reading browser_fetcher.py
directly, matching the build_browser_fetcher docstring's own note that
domclick is one of the providers not yet wired to the proxy pool, #2160
P4). No observable behavior change. Documented inline at the call site.
Tests: domclick-specific suite (91 tests: golden parity, sweep, admin
ingest parity, detail + detail kit parity) all green, plus cross-provider
test_scraper_kit_pipeline_parity2.py (8 tests). Full backend suite:
3278 passed, 6 skipped, 1 pre-existing flake (test_search_cache_hit,
#2208) - no new failures.
