Implement proper storage metrics (P0-009)\n\n- Add dedicated storage_metrics table\n- Create StorageMetricReport models with proper field names\n- Add ReportStorageMetrics to agent client\n- Update storage scanner to use new method\n- Implement server-side handlers and queries\n- Register new routes and update UI\n- Remove legacy Scan() method\n- Follow ETHOS principles: honest naming, clean architecture

aggregator-agent/internal/cache/local.go

@@ -8,6 +8,7 @@ import (
 	"time"
 
 	"github.com/Fimeg/RedFlag/aggregator-agent/internal/client"
+	"github.com/Fimeg/RedFlag/aggregator-agent/internal/constants"
 	"github.com/google/uuid"
 )
 
@@ -22,15 +23,12 @@ type LocalCache struct {
 	AgentStatus  string                    `json:"agent_status"`
 }
 
-// CacheDir is the directory where local cache is stored
-const CacheDir = "/var/lib/redflag-agent"
-
-// CacheFile is the file where scan results are cached
-const CacheFile = "last_scan.json"
+// cacheFile is the file where scan results are cached
+const cacheFile = "last_scan.json"
 
 // GetCachePath returns the full path to the cache file
 func GetCachePath() string {
-	return filepath.Join(CacheDir, CacheFile)
+	return filepath.Join(constants.GetAgentCacheDir(), cacheFile)
 }
 
 // Load reads the local cache from disk
@@ -62,7 +60,7 @@ func (c *LocalCache) Save() error {
 	cachePath := GetCachePath()
 
 	// Ensure cache directory exists
-	if err := os.MkdirAll(CacheDir, 0755); err != nil {
+	if err := os.MkdirAll(constants.GetAgentCacheDir(), 0755); err != nil {
 		return fmt.Errorf("failed to create cache directory: %w", err)
 	}