Initial NTE history exporter

Initial NTE history exporter

Add a Windows live-capture exporter for NTE pull history with support for
Permanent Monopoly, Limited Monopoly, and Arc Miracle Box histories.

Included:
- live packet capture via Windows raw sockets
- CSV and JSON export generation
- normalized reward and banner mapping files
- Monopoly v7 Points Gift / Chase Reward classification
- Arc Miracle Box decoding with shared pity metadata
- timestamp grouping and UID generation
- Windows launcher scripts with admin prompting
- docs for usage, export format, limitations, and packet notes
- tests covering decoder behaviour and mapping consistency

Generated exports, captures, briefs, and local data are ignored for privacy.

docs/limitations.md

@@ -0,0 +1,17 @@
+# Limitations
+
+This is a prototype and supports `Lottery_Permanent`, `Lottery_LimitedCharacter`, and `Arc_MiracleBox`.
+
+Known limitations:
+
+- Other NTE banners are not implemented yet.
+- The game appears not to provide a unique server-side roll ID in the decoded record body.
+- UIDs are generated deterministically from decoded fields and timestamp-group order.
+- Boundary timestamp groups may be skipped to avoid exporting unstable data.
+- Page gaps are ignored outside the longest continuous run and reported as warnings.
+- Live capture currently uses Windows raw sockets and requires administrator permission.
+- The file adapter reads mitmproxy `.flows` captures for research and testing.
+- The more stable and reliable Npcap/libpcap capture is not implemented yet.
+- Reward mappings are research mappings and should be expanded as more samples are decoded.
+
+Privacy guardrail: raw packet data must not be included in sanitized exports.