Initial commit: RNodeTHV4 boundary mode firmware for Heltec V4

Bridges LoRa mesh and TCP/WiFi backbone networks using microReticulum.
Based on microReticulum_Firmware with boundary mode additions:
- BoundaryMode.h: State management and EEPROM persistence
- BoundaryConfig.h: WiFi captive portal for configuration
- TcpInterface.h: TCP backbone interface with HDLC framing
- Display.h: Custom OLED layout with network status indicators
- Transport/Identity library patches for embedded memory constraints

release_hashes.py

@@ -0,0 +1,50 @@
+#!/usr/bin/env python3
+
+# Copyright (C) 2024, Mark Qvist
+
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+import os
+import json
+import hashlib
+
+major_version = None
+minor_version = None
+target_version = None
+
+file = open("Config.h", "rb")
+config_data = file.read().splitlines()
+for line in config_data:
+    dline = line.decode("utf-8").strip()
+    components = dline.split()
+    if dline.startswith("#define MAJ_VERS"):
+        major_version = "%01d" % ord(bytes.fromhex(dline.split()[2].split("x")[1]))
+    if dline.startswith("#define MIN_VERS"):
+        minor_version = "%02d" % ord(bytes.fromhex(dline.split()[2].split("x")[1]))
+
+target_version = major_version+"."+minor_version
+
+release_hashes = {}
+target_dir = "./Release"
+files = os.listdir(target_dir)
+for filename in files:
+    if os.path.isfile(os.path.join(target_dir, filename)):
+        if filename.startswith("rnode_firmware"):
+            file = open(os.path.join(target_dir, filename), "rb")
+            release_hashes[filename] = {
+                "hash": hashlib.sha256(file.read()).hexdigest(),
+                "version": target_version
+            }
+
+print(json.dumps(release_hashes))