refactor: centralize input validation and schema interpretation

Migrate twelve application service files to the existing provider input owner,
preserving schema causes, cancellation precedence, caller selection, and
retained Evidence. Keep flows with distinct error policies separate.

Replace the DeepSeek verifier's recursive object scan with schema-position
traversal using the canonical keyword and local-reference owners. Literal
pattern fields no longer cause false regex failures; patternProperties keys
are checked alongside actual pattern constraints in native regex modes.

Validation: 271 focused workflow/service tests and six verifier regressions
passed; static checks, discovery, and actual Node source-loader smoke passed.
The baseline scanner reproduced the new regressions. Installed DeepSeek client
execution was not run.

src/application/javascript/JavaScriptApplicationWorkflowService.ts

@@ -3,6 +3,7 @@ import {
   type EvidenceLookup,
 } from "../EvidenceInputResolver.js";
 import { retainedEvidenceReferenceSchema } from "../../domain/evidenceReference.js";
+import { parseProviderOperationInput } from "../ProviderOperationExecution.js";
 import type { ResolvedSourceToBundleReference } from "./SourceToBundleReference.js";
 import { z } from "zod";
 
@@ -121,16 +122,15 @@ export const traceApplicationFeatureEvidence = (
   AnalysisError
 > => {
   const operation = "trace_application_feature";
-  const request = featureTraceFrameSchema.safeParse(rawInput);
-  if (!request.success)
-    return err(
-      analysisInputErrorFromIssues(operation, request.error.issues, rawInput, {
-        cause: request.error,
-      }),
-    );
-  const selected = resolveWorkflowEvidence(request.data.application, lookup);
+  const request = parseProviderOperationInput(
+    operation,
+    rawInput,
+    featureTraceFrameSchema,
+  );
+  if (!request.ok) return request;
+  const selected = resolveWorkflowEvidence(request.value.application, lookup);
   if (!selected.ok) return selected;
-  const input = { ...request.data, application: selected.value };
+  const input = { ...request.value, application: selected.value };
   const sourceResult = parseApplicationGraphEvidence(input.application, [
     "application",
   ]);
@@ -187,17 +187,16 @@ export const compareApplicationVersionsEvidence = (
   AnalysisError
 > => {
   const operation = "compare_application_versions";
-  const request = versionComparisonFrameSchema.safeParse(rawInput);
-  if (!request.success)
-    return err(
-      analysisInputErrorFromIssues(operation, request.error.issues, rawInput, {
-        cause: request.error,
-      }),
-    );
-  const pair = resolveApplicationGraphPair(operation, request.data, lookup);
+  const request = parseProviderOperationInput(
+    operation,
+    rawInput,
+    versionComparisonFrameSchema,
+  );
+  if (!request.ok) return request;
+  const pair = resolveApplicationGraphPair(operation, request.value, lookup);
   if (!pair.ok) return pair;
   const { left, right } = pair.value;
-  const input = { ...request.data, ...pair.value.selected };
+  const input = { ...request.value, ...pair.value.selected };
   const leftNativeResult = parseNativeApplicationEvidence(
     input.left_native_observations,
     ["left_native_observations"],
@@ -306,17 +305,16 @@ export const compareJavaScriptExportShapesEvidence = (
   AnalysisError
 > => {
   const operation = "compare_javascript_export_shapes";
-  const request = exportShapeFrameSchema.safeParse(rawInput);
-  if (!request.success)
-    return err(
-      analysisInputErrorFromIssues(operation, request.error.issues, rawInput, {
-        cause: request.error,
-      }),
-    );
-  const pair = resolveApplicationGraphPair(operation, request.data, lookup);
+  const request = parseProviderOperationInput(
+    operation,
+    rawInput,
+    exportShapeFrameSchema,
+  );
+  if (!request.ok) return request;
+  const pair = resolveApplicationGraphPair(operation, request.value, lookup);
   if (!pair.ok) return pair;
   const { left, right } = pair.value;
-  const input = { ...request.data, ...pair.value.selected };
+  const input = { ...request.value, ...pair.value.selected };
   const identities = javaScriptExportShapeIdentitiesSchema.safeParse({
     left: left.evidence,
     right: right.evidence,