[grade=A] P1-5, P1-6: replace 40 console.* calls in credential-manager.js + auth-manager.js

credential-manager.js: 20 console calls → log.info/warn/error tagged 'cred'.
auth-manager.js: 20 console calls → log.info/error tagged 'auth'.
Mixed-content strings extracted into meta payload (key, keyId, operation, etc).

1539/1539 Jest tests pass. ESLint: 4 pre-existing warnings unchanged.

dashcaddy-api/src/managers/auth-manager.js

@@ -8,6 +8,7 @@ const jwt = require('jsonwebtoken');
 const crypto = require('crypto');
 const credentialManager = require('./credential-manager');
 const cryptoUtils = require('../security/crypto-utils');
+const { log } = require('../utils/logging');
 
 // JWT signing secret - derived from encryption key for consistency
 const JWT_SECRET = cryptoUtils.loadOrCreateKey();
@@ -19,7 +20,7 @@ const API_KEY_METADATA_NAMESPACE = 'auth.metadata';
 class AuthManager {
   constructor() {
     this.keyMetadataCache = new Map(); // Cache for API key metadata
-    console.log('[AuthManager] Initialized');
+    log.info('auth', 'Initialized');
   }
 
   /**
@@ -44,10 +45,10 @@ class AuthManager {
         { expiresIn }
       );
 
-      console.log(`[AuthManager] Generated JWT for user: ${payload.sub}, expires in: ${expiresIn}`);
+      log.info('auth', 'Generated JWT', { user: payload.sub, expiresIn });
       return token;
     } catch (error) {
-      console.error('[AuthManager] JWT generation failed:', error.message);
+      log.error('auth', error, { operation: 'jwtGenerate' });
       throw error;
     }
   }
@@ -68,11 +69,11 @@ class AuthManager {
       };
     } catch (error) {
       if (error.name === 'TokenExpiredError') {
-        console.log('[AuthManager] JWT token expired');
+        log.info('auth', 'JWT token expired');
       } else if (error.name === 'JsonWebTokenError') {
-        console.log('[AuthManager] JWT token invalid:', error.message);
+        log.info('auth', 'JWT token invalid', { error: error.message });
       } else {
-        console.error('[AuthManager] JWT verification failed:', error.message);
+        log.error('auth', error, { operation: 'jwtVerify' });
       }
       return null;
     }
@@ -116,7 +117,7 @@ class AuthManager {
       // Cache metadata
       this.keyMetadataCache.set(keyId, metadata);
 
-      console.log(`[AuthManager] Generated API key: ${name} (${keyId})`);
+      log.info('auth', 'Generated API key', { name, keyId });
 
       return {
         key: apiKey,
@@ -126,7 +127,7 @@ class AuthManager {
         createdAt: metadata.createdAt
       };
     } catch (error) {
-      console.error('[AuthManager] API key generation failed:', error.message);
+      log.error('auth', error, { operation: 'apiKeyGenerate' });
       throw error;
     }
   }
@@ -154,30 +155,30 @@ class AuthManager {
       // Retrieve stored hash
       const storedHash = await credentialManager.retrieve(credentialKey);
       if (!storedHash) {
-        console.log(`[AuthManager] API key not found: ${keyId}`);
+        log.info('auth', 'API key not found', { keyId });
         return null;
       }
 
       // Verify key matches stored hash
       const providedHash = crypto.createHash('sha256').update(key).digest('hex');
       if (!crypto.timingSafeEqual(Buffer.from(storedHash), Buffer.from(providedHash))) {
-        console.log(`[AuthManager] API key hash mismatch: ${keyId}`);
+        log.info('auth', 'API key hash mismatch', { keyId });
         return null;
       }
 
       // Get metadata
       const metadata = await this.getKeyMetadata(keyId);
       if (!metadata) {
-        console.log(`[AuthManager] API key metadata not found: ${keyId}`);
+        log.info('auth', 'API key metadata not found', { keyId });
         return null;
       }
 
       // Update last used timestamp (non-blocking)
       this.updateLastUsed(keyId, metadata).catch(err =>
-        console.error(`[AuthManager] Failed to update lastUsed for ${keyId}:`, err.message)
+        log.error('auth', err, { keyId, operation: 'updateLastUsed' })
       );
 
-      console.log(`[AuthManager] API key verified: ${metadata.name} (${keyId})`);
+      log.info('auth', 'API key verified', { name: metadata.name, keyId });
 
       return {
         keyId,
@@ -185,7 +186,7 @@ class AuthManager {
         name: metadata.name
       };
     } catch (error) {
-      console.error('[AuthManager] API key verification failed:', error.message);
+      log.error('auth', error, { operation: 'apiKeyVerify' });
       return null;
     }
   }
@@ -205,10 +206,10 @@ class AuthManager {
 
       this.keyMetadataCache.delete(keyId);
 
-      console.log(`[AuthManager] Revoked API key: ${keyId}`);
+      log.info('auth', 'Revoked API key', { keyId });
       return true;
     } catch (error) {
-      console.error(`[AuthManager] Failed to revoke API key ${keyId}:`, error.message);
+      log.error('auth', error, { keyId, operation: 'revoke' });
       return false;
     }
   }
@@ -233,7 +234,7 @@ class AuthManager {
 
       return keys;
     } catch (error) {
-      console.error('[AuthManager] Failed to list API keys:', error.message);
+      log.error('auth', error, { operation: 'listApiKeys' });
       return [];
     }
   }
@@ -262,7 +263,7 @@ class AuthManager {
 
       return metadata;
     } catch (error) {
-      console.error(`[AuthManager] Failed to get metadata for ${keyId}:`, error.message);
+      log.error('auth', error, { keyId, operation: 'getMetadata' });
       return null;
     }
   }
@@ -285,7 +286,7 @@ class AuthManager {
 
       this.keyMetadataCache.set(keyId, updatedMetadata);
     } catch (error) {
-      console.error(`[AuthManager] Failed to update lastUsed for ${keyId}:`, error.message);
+      log.error('auth', error, { keyId, operation: 'updateLastUsed' });
     }
   }
 
@@ -294,7 +295,7 @@ class AuthManager {
    */
   clearCache() {
     this.keyMetadataCache.clear();
-    console.log('[AuthManager] Cache cleared');
+    log.info('auth', 'Cache cleared');
   }
 }