fix: centralize stale model IDs into single CLAUDE_MODELS constant

Hardcoded model IDs (claude-sonnet-4-20250514, claude-opus-4-20250514)
were scattered across 7+ files as fallbacks. These were stale after the
CLI update to v2.1.73 which resolves aliases to the new model IDs
(claude-sonnet-4-6, claude-opus-4-6).

- Add src/lib/model-ids.ts with CLAUDE_MODELS + DEFAULT_MODEL_ID
  (client-safe, no fs/db imports — avoids Next.js bundling errors)
- provider-resolver.ts: import + re-export from model-ids.ts, replace
  hardcoded envModels and toAiSdkConfig fallback
- model-context.ts: derive context window map from CLAUDE_MODELS
  (import from model-ids.ts to stay client-safe)
- skills/search/route.ts: derive MODEL_MAP from CLAUDE_MODELS
- checkin-processor.ts, onboarding-processor.ts, media/jobs/plan/route.ts:
  use DEFAULT_MODEL_ID for last-resort fallback

One place to update when new models release.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Author: jasonjaclyn2017

src/app/api/media/jobs/plan/route.ts

@@ -1,6 +1,6 @@
 import { NextRequest } from 'next/server';
 import { streamTextFromProvider } from '@/lib/text-generator';
-import { resolveProvider } from '@/lib/provider-resolver';
+import { resolveProvider, DEFAULT_MODEL_ID } from '@/lib/provider-resolver';
 import fs from 'fs';
 import type { PlanMediaJobRequest } from '@/types';
 
@@ -62,7 +62,7 @@ export async function POST(request: NextRequest) {
     });
     // Preserve 'env' semantics (see onboarding route for rationale)
     const providerId = resolved.provider?.id || 'env';
-    const modelId = resolved.upstreamModel || resolved.model || session?.model || 'claude-sonnet-4-20250514';
+    const modelId = resolved.upstreamModel || resolved.model || session?.model || DEFAULT_MODEL_ID;
 
     // Read document content
     let docContent = body.docContent || '';

src/app/api/skills/search/route.ts

@@ -1,5 +1,6 @@
 import { NextResponse } from 'next/server';
 import { getActiveProvider, getSetting } from '@/lib/db';
+import { CLAUDE_MODELS } from '@/lib/provider-resolver';
 
 interface SkillInfo {
   name: string;
@@ -12,12 +13,10 @@ interface SearchRequest {
   model?: string;
 }
 
-// Model alias -> full model ID
-const MODEL_MAP: Record<string, string> = {
-  sonnet: 'claude-sonnet-4-20250514',
-  opus: 'claude-opus-4-20250514',
-  haiku: 'claude-haiku-4-20250414',
-};
+// Model alias -> full model ID (derived from central CLAUDE_MODELS)
+const MODEL_MAP: Record<string, string> = Object.fromEntries(
+  Object.entries(CLAUDE_MODELS).map(([alias, m]) => [alias, m.id])
+);
 
 interface ApiConfig {
   supported: boolean;

src/lib/checkin-processor.ts

@@ -6,7 +6,7 @@
 import fs from 'fs';
 import path from 'path';
 import { getSetting, getSession } from '@/lib/db';
-import { resolveProvider } from '@/lib/provider-resolver';
+import { resolveProvider, DEFAULT_MODEL_ID } from '@/lib/provider-resolver';
 import { loadState, saveState, writeDailyMemory } from '@/lib/assistant-workspace';
 import { getLocalDateString } from '@/lib/utils';
 import { generateTextFromProvider } from '@/lib/text-generator';
@@ -70,7 +70,7 @@ export async function processCheckin(
       sessionModel: session?.model || undefined,
     });
     const providerId = resolved.provider?.id || 'env';
-    const model = resolved.upstreamModel || resolved.model || getSetting('default_model') || 'claude-sonnet-4-20250514';
+    const model = resolved.upstreamModel || resolved.model || getSetting('default_model') || DEFAULT_MODEL_ID;
 
     const dailyMemoryPrompt = `You maintain daily memory entries for an AI assistant. Given the user's daily check-in answers, generate a daily memory entry for ${today}.
 

src/lib/model-context.ts

@@ -1,10 +1,10 @@
+import { CLAUDE_MODELS } from './model-ids';
+
 export const MODEL_CONTEXT_WINDOWS: Record<string, number> = {
-  'sonnet': 200000,
-  'opus': 200000,
-  'haiku': 200000,
-  'claude-sonnet-4-20250514': 200000,
-  'claude-opus-4-20250514': 200000,
-  'claude-haiku-4-5-20251001': 200000,
+  // Short aliases
+  ...Object.fromEntries(Object.entries(CLAUDE_MODELS).map(([alias, m]) => [alias, m.contextWindow])),
+  // Full model IDs
+  ...Object.fromEntries(Object.values(CLAUDE_MODELS).map(m => [m.id, m.contextWindow])),
 };
 
 export function getContextWindow(model: string): number | null {

src/lib/model-ids.ts

@@ -0,0 +1,17 @@
+/**
+ * Canonical Claude model definitions — single source of truth.
+ *
+ * This file has ZERO server-side imports (no fs, no db) so it can be
+ * safely imported from both server code and client-side React hooks.
+ *
+ * Update these when Anthropic releases new model generations.
+ */
+
+export const CLAUDE_MODELS = {
+  sonnet: { id: 'claude-sonnet-4-6', displayName: 'Sonnet 4.6', contextWindow: 200000 },
+  opus:   { id: 'claude-opus-4-6',   displayName: 'Opus 4.6',   contextWindow: 200000 },
+  haiku:  { id: 'claude-haiku-4-5-20251001', displayName: 'Haiku 4.5', contextWindow: 200000 },
+} as const;
+
+/** Default model ID used as a last-resort fallback */
+export const DEFAULT_MODEL_ID = CLAUDE_MODELS.sonnet.id;

src/lib/onboarding-processor.ts

@@ -6,7 +6,7 @@
 import fs from 'fs';
 import path from 'path';
 import { getSetting, getSession } from '@/lib/db';
-import { resolveProvider } from '@/lib/provider-resolver';
+import { resolveProvider, DEFAULT_MODEL_ID } from '@/lib/provider-resolver';
 import { loadState, saveState, ensureDailyDir, generateRootDocs } from '@/lib/assistant-workspace';
 import { getLocalDateString } from '@/lib/utils';
 import { generateTextFromProvider } from '@/lib/text-generator';
@@ -74,7 +74,7 @@ export async function processOnboarding(
       sessionModel: session?.model || undefined,
     });
     const providerId = resolved.provider?.id || 'env';
-    const model = resolved.upstreamModel || resolved.model || getSetting('default_model') || 'claude-sonnet-4-20250514';
+    const model = resolved.upstreamModel || resolved.model || getSetting('default_model') || DEFAULT_MODEL_ID;
 
     const soulPrompt = `Based on the following user onboarding answers, generate a concise "soul.md" file that defines an AI assistant's personality, communication style, and behavioral rules. Write in second person ("You are..."). Keep it under 2000 characters. Use markdown headers and bullet points.\n\n${qaText}`;
 

src/lib/provider-resolver.ts

@@ -25,6 +25,11 @@ import {
   getModelsForProvider,
 } from './db';
 
+// Canonical model definitions live in model-ids.ts (client-safe, no fs/db imports).
+// Import for local use and re-export for external consumers.
+import { CLAUDE_MODELS, DEFAULT_MODEL_ID } from './model-ids';
+export { CLAUDE_MODELS, DEFAULT_MODEL_ID };
+
 // ── Resolution result ───────────────────────────────────────────
 
 export interface ResolvedProvider {
@@ -285,7 +290,7 @@ export function toAiSdkConfig(
     const catalogEntry = resolved.availableModels.find(m => m.modelId === modelOverride);
     modelId = catalogEntry?.upstreamModelId || modelOverride;
   } else {
-    modelId = resolved.upstreamModel || resolved.model || 'claude-sonnet-4-20250514';
+    modelId = resolved.upstreamModel || resolved.model || DEFAULT_MODEL_ID;
   }
   const provider = resolved.provider;
   const protocol = resolved.protocol;
@@ -461,11 +466,11 @@ function buildResolution(
 
     // Env mode uses short aliases (sonnet/opus/haiku) in the UI.
     // Map them to full Anthropic model IDs so toAiSdkConfig can resolve correctly.
-    const envModels: CatalogModel[] = [
-      { modelId: 'sonnet', upstreamModelId: 'claude-sonnet-4-20250514', displayName: 'Sonnet 4.6' },
-      { modelId: 'opus', upstreamModelId: 'claude-opus-4-20250514', displayName: 'Opus 4.6' },
-      { modelId: 'haiku', upstreamModelId: 'claude-haiku-4-5-20251001', displayName: 'Haiku 4.5' },
-    ];
+    const envModels: CatalogModel[] = Object.entries(CLAUDE_MODELS).map(([alias, m]) => ({
+      modelId: alias,
+      upstreamModelId: m.id,
+      displayName: m.displayName,
+    }));
 
     // Resolve upstream model from the alias table
     const catalogEntry = model ? envModels.find(m => m.modelId === model) : undefined;