* Single owner for the Chrome DevToolsActivePort startup deadline
Cold Chrome startup tolerance was spelled three ways for one wait: the helper
fell back to 15,000 ms, the runtime fixture lifecycle passed a literal 60,000,
and the real-browser verifier kept a local 60,000 constant. A per-caller literal
quietly changes how long a lane tolerates a cold browser before it fails, and
the failure reported only elapsed_ms, so a reader could not see which ceiling
was hit.
Export BROWSER_DEVTOOLS_STARTUP_TIMEOUT_MS as the owner, use it for the helper
fallback and both call sites, and report startup_timeout_ms in
BrowserStartupError. A source guard keeps callers from restating the number.
* Pin the DevToolsActivePort deadline guard to the startup call argument
---------
Co-authored-by: morluto <76467478+morluto@users.noreply.github.com>
* refactor(domain): split error taxonomy into thematic modules
Move each error family out of domain/errors.ts into its own module
(base, core, provider selection/adapter, browser observation,
artifact, evidence, unknown registry, hopper, configuration) and
relocate AnalysisErrorProjection to analysisErrorProjection.
Migrate all 162 importers to the owning modules and delete
errors.ts. No re-export shims; behavior is unchanged.
* refactor(runtime): name all silent catch causes without changing diagnostics
Bind cause in every bare catch and unhandled rejection across src/.
Real failures preserve the cause for logging; best-effort cleanup
carries an explicit comment. Caller-visible and Evidence strings are
byte-identical to before.