adding false positive system

src/Storage/Database.php

@@ -156,5 +156,14 @@ $this->pdo->exec("
             INSERT OR IGNORE INTO log_entries_fts(rowid, line, source_name)
             SELECT id, line, source_name FROM log_entries
         ");
+
+        $this->pdo->exec("
+            CREATE TABLE IF NOT EXISTS false_positives (
+                id INTEGER PRIMARY KEY AUTOINCREMENT,
+                pattern TEXT NOT NULL,
+                description TEXT NOT NULL DEFAULT '',
+                created_at TEXT DEFAULT (datetime('now'))
+            )
+        ");
     }
 }

src/Storage/Repository.php

@@ -290,4 +290,52 @@ class Repository
 
         return $row['count'] <= 1;
     }
+
+    // --- False Positives ---
+
+    public function getFalsePositives(): array
+    {
+        return $this->db->pdo()->query(
+            "SELECT id, pattern, description, created_at FROM false_positives ORDER BY id"
+        )->fetchAll();
+    }
+
+    public function createFalsePositive(string $pattern, string $description = ''): array
+    {
+        $stmt = $this->db->pdo()->prepare(
+            "INSERT INTO false_positives (pattern, description) VALUES (?, ?)"
+        );
+        $stmt->execute([$pattern, $description]);
+        $id = (int) $this->db->pdo()->lastInsertId();
+        return $this->getFalsePositive($id);
+    }
+
+    public function getFalsePositive(int $id): ?array
+    {
+        $stmt = $this->db->pdo()->prepare(
+            "SELECT id, pattern, description, created_at FROM false_positives WHERE id = ?"
+        );
+        $stmt->execute([$id]);
+        $row = $stmt->fetch();
+        return $row ?: null;
+    }
+
+    public function deleteFalsePositive(int $id): void
+    {
+        $this->db->pdo()->prepare("DELETE FROM false_positives WHERE id = ?")->execute([$id]);
+    }
+
+    public function isFalsePositive(string $line): bool
+    {
+        $patterns = $this->db->pdo()->query(
+            "SELECT pattern FROM false_positives"
+        )->fetchAll(\PDO::FETCH_COLUMN);
+
+        foreach ($patterns as $pattern) {
+            if (preg_match($pattern, $line)) {
+                return true;
+            }
+        }
+        return false;
+    }
 }