feat: add Firefox extract methods and complete data model fields (#527)

* feat: add Firefox extract methods and complete data model fields

Firefox extract methods:
- extractPasswords: JSON + ASN1PBE decryption via decryptPBE helper
- extractCookies: SQLite, plaintext (no encryption), journalOff
- extractHistories: SQLite, visit count ASC sort (matches old behavior)
- extractDownloads: SQLite, moz_annos JOIN with JSON content parsing
- extractBookmarks: SQLite, moz_bookmarks JOIN moz_places
- extractExtensions: JSON, filter by location=app-profile
- extractLocalStorage: SQLite webappsstore2, reversed originKey parsing

Complete data model fields (union of Chromium and Firefox):
- CookieEntry: add HasExpire, IsPersistent
- DownloadEntry: add MimeType
- CreditCardEntry: add NickName, Address
- ExtensionEntry: add HomepageURL, Enabled

Update Chromium extractors to populate new fields:
- extract_cookie.go: fill HasExpire, IsPersistent
- extract_download.go: SELECT and fill mime_type
- extract_creditcard.go: SELECT nickname, billing_address_id
- extract_extension.go: fill HomepageURL, Enabled (state==1)

Tests:
- Full test coverage for all 7 Firefox extract functions
- Password test uses known ASN1PBE test vectors from crypto package
- Table-driven tests for parseOriginKey
- Updated Chromium tests for new fields

* fix: add COALESCE for nullable bookmark title in Firefox query

Firefox moz_bookmarks.title can be NULL (PR #500 fixed this in old code).
Add COALESCE to handle NULL gracefully in SQL instead of relying on
driver-specific NULL→string conversion behavior.

* fix: enable journalOff for all Firefox SQLite extractors and populate cookie flags

- Set journalOff=true for extract_history, extract_download, extract_bookmark
  (Firefox databases require PRAGMA journal_mode=off to avoid lock errors)
- Populate HasExpire and IsPersistent for Firefox cookies (derived from expiry>0)
- Add test assertions for HasExpire/IsPersistent in both Chromium and Firefox

browser/firefox/extract_history.go

@@ -0,0 +1,39 @@
+package firefox
+
+import (
+	"database/sql"
+	"sort"
+
+	"github.com/moond4rk/hackbrowserdata/types"
+	"github.com/moond4rk/hackbrowserdata/utils/sqliteutil"
+	"github.com/moond4rk/hackbrowserdata/utils/typeutil"
+)
+
+const firefoxHistoryQuery = `SELECT url, COALESCE(last_visit_date, 0),
+	COALESCE(title, ''), visit_count FROM moz_places`
+
+func extractHistories(path string) ([]types.HistoryEntry, error) {
+	histories, err := sqliteutil.QueryRows(path, true, firefoxHistoryQuery,
+		func(rows *sql.Rows) (types.HistoryEntry, error) {
+			var url, title string
+			var visitCount int
+			var lastVisit int64
+			if err := rows.Scan(&url, &lastVisit, &title, &visitCount); err != nil {
+				return types.HistoryEntry{}, err
+			}
+			return types.HistoryEntry{
+				URL:        url,
+				Title:      title,
+				VisitCount: visitCount,
+				LastVisit:  typeutil.TimeStamp(lastVisit / 1000000),
+			}, nil
+		})
+	if err != nil {
+		return nil, err
+	}
+
+	sort.Slice(histories, func(i, j int) bool {
+		return histories[i].VisitCount < histories[j].VisitCount
+	})
+	return histories, nil
+}