refactor(runtime): name all silent catch causes without changing diagnostics (#637)

* 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.

src/application/JavaScriptArtifactPathResolution.ts

@@ -430,7 +430,9 @@ const packageEntry = (
     if (entry === undefined) return { status: "missing" };
     const legacy = packagePathValue(entry);
     return legacy.status === "value" ? { ...legacy, source: "legacy" } : legacy;
-  } catch {
+  } catch (cause: unknown) {
+    // Reflect-based manifest reads fail closed as invalid.
+    void cause;
     return { status: "invalid" };
   }
 };
@@ -545,7 +547,9 @@ const fileUrlPath = (value: string): string | undefined => {
     const url = new URL(value);
     if (url.protocol !== "file:" || url.hostname !== "") return undefined;
     return decodeURIComponent(url.pathname).replace(/^\/+/, "");
-  } catch {
+  } catch (cause: unknown) {
+    // Unparseable file URLs have no path to resolve.
+    void cause;
     return undefined;
   }
 };