Add Classified Brief 0x02 and remove hardcoded toolchains

0x0014a_cb/include/crypto.h

@@ -0,0 +1,21 @@
+/**
+ * @file crypto.h
+ * @brief Lightweight rolling cipher interface for Operation Zero Hour ESA
+ * @author Kevin Thomas
+ * @date 2026
+ *
+ * MIT License
+ * Copyright (c) 2026 Kevin Thomas
+ */
+
+#ifndef CRYPTO_H
+#define CRYPTO_H
+
+#include <stdint.h>
+#include <stddef.h>
+
+#define TOKEN_LEN 8
+
+void decrypt_auth_token(uint8_t *dest);
+
+#endif /* CRYPTO_H */

0x0014a_cb/include/gpio_ctrl.h

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+/**
+ * @file gpio_ctrl.h
+ * @brief GPIO hardware control interface for Operation Zero Hour ESA
+ * @author Kevin Thomas
+ * @date 2026
+ *
+ * MIT License
+ * Copyright (c) 2026 Kevin Thomas
+ */
+
+#ifndef GPIO_CTRL_H
+#define GPIO_CTRL_H
+
+#include <stdbool.h>
+
+#define LED_RED_PIN       16
+#define LED_GREEN_PIN     17
+#define TAMPER_WIRE_PIN   15
+
+void init_gpio(void);
+void set_led_armed(void);
+void set_led_safe(void);
+void set_led_tamper_flash(bool state);
+bool is_tamper_wire_intact(void);
+
+#endif /* GPIO_CTRL_H */

0x0014a_cb/include/lora.h

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+// MIT License
+//
+// Copyright (c) 2026 Kevin Thomas
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in all
+// copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+// SOFTWARE.
+//
+// Author:  Kevin Thomas
+// Email:   kevin@mytechnotalent.com
+// GitHub:  https://github.com/mytechnotalent
+// File:    lora.h
+// Desc:    Declares UART1 interface for the REYAX RYLR998 LoRa transceiver.
+// Created: 2026
+
+#ifndef LORA_H
+#define LORA_H
+
+#include <stdbool.h>
+#include <stddef.h>
+#include "hardware/uart.h"
+
+#define LORA_UART     uart1
+#define LORA_BAUD     9600
+#define LORA_TX_PIN   8
+#define LORA_RX_PIN   9
+
+void init_lora(void);
+void lora_send(const char *msg);
+bool lora_poll_packet(char *payload_out, size_t max_len);
+
+#endif // LORA_H

0x0014a_cb/include/safe_arm.h

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+/**
+ * @file safe_arm.h
+ * @brief Electronic Safe-and-Arm (ESA) controller interface
+ * @author Kevin Thomas
+ * @date 2026
+ *
+ * MIT License
+ * Copyright (c) 2026 Kevin Thomas
+ */
+
+#ifndef SAFE_ARM_H
+#define SAFE_ARM_H
+
+#include <stdbool.h>
+#include <stdint.h>
+
+#define STATE_WARHEAD_ARMED 0x01
+#define STATE_WARHEAD_SAFE  0x03
+#define STATE_TAMPER_TRIP   0xFF
+
+void init_safe_arm_controller(void);
+void process_safe_arm_tick(void);
+
+#endif /* SAFE_ARM_H */