feat(01-03): wire taskMetadata from selectAndApplyModel to resolveModelForComplexity

- Pass unitType and classification.taskMetadata as 5th and 6th args to resolveModelForComplexity
- Completes end-to-end data pipeline: classifier extracts metadata, attaches to ClassificationResult, auto-model-selection passes through to router for capability scoring

src/resources/extensions/gsd/auto-model-selection.ts

@@ -9,7 +9,7 @@ import type { ExtensionAPI, ExtensionContext } from "@gsd/pi-coding-agent";
 import type { GSDPreferences } from "./preferences.js";
 import { resolveModelWithFallbacksForUnit, resolveDynamicRoutingConfig } from "./preferences.js";
 import type { ComplexityTier } from "./complexity-classifier.js";
-import { classifyUnitComplexity, tierLabel, extractTaskMetadata } from "./complexity-classifier.js";
+import { classifyUnitComplexity, tierLabel } from "./complexity-classifier.js";
 import { resolveModelForComplexity, escalateTier } from "./model-router.js";
 import { getLedger, getProjectTotals } from "./metrics.js";
 import { unitPhaseLabel } from "./auto-dashboard.js";
@@ -107,14 +107,13 @@ export async function selectAndApplyModel(
           }
         }
 
-        // Extract task metadata for capability scoring
-        const taskMeta = unitType === "execute-task"
-          ? extractTaskMetadata(unitId, basePath)
-          : undefined;
-
         const routingResult = resolveModelForComplexity(
-          classification, modelConfig, routingConfig, availableModelIds,
-          unitType, taskMeta,
+          classification,
+          modelConfig,
+          routingConfig,
+          availableModelIds,
+          unitType,
+          classification.taskMetadata,
         );
 
         if (routingResult.wasDowngraded) {