feat: upgrade all dependencies to latest versions

Major version bumps:
- defmt 0.3 → 1.0
- esp-hal 0.22 → 1.0 (full API migration)
- esp-hal-embassy 0.5 → esp-rtos 0.2 (replacement crate)
- esp-backtrace 0.14 → 0.18
- esp-println 0.12 → 0.16
- embassy-nrf 0.2 → 0.10
- embassy-embedded-hal 0.2 → 0.6
- embassy-sync 0.6 → 0.8
- embassy-time 0.3 → 0.5
- embassy-usb 0.3 → 0.6
- embassy-usb-driver 0.1 → 0.2
- embedded-io-async 0.6 → 0.7
- heapless 0.8 → 0.9
- panic-probe 0.3 → 1.0
- minijinja 2.0 → 2.18
- owo-colors 4.0 → 4.3

embassy-executor stays at 0.9 (latest with Xtensa support via esp-rtos).
Updated ESP toolchain from 1.82 to 1.93.

src/board/heltec_v3.rs

@@ -2,12 +2,12 @@ use super::traits::LoRaBoard;
 use embassy_embedded_hal::shared_bus::asynch::spi::SpiDevice;
 use embassy_sync::blocking_mutex::raw::NoopRawMutex;
 use embassy_time::Delay;
-use esp_hal::dma::{Dma, DmaPriority};
-use esp_hal::gpio::{Input, Level, Output, Pull};
+use esp_hal::dma::{DmaRxBuf, DmaTxBuf};
+use esp_hal::gpio::{Input, InputConfig, Level, Output, OutputConfig, Pull};
 use esp_hal::i2c::master::{Config as I2cConfig, I2c};
-use esp_hal::prelude::*;
 use esp_hal::spi::master::{Config as SpiConfig, Spi, SpiDmaBus};
-use esp_hal::spi::SpiMode;
+use esp_hal::spi::Mode as SpiMode;
+use esp_hal::time::Rate;
 use esp_hal::timer::timg::TimerGroup;
 use static_cell::StaticCell;
 
@@ -67,32 +67,30 @@ impl Board {
     pub fn into_parts(self) -> (RadioParts, UsbParts, Option<DisplayParts>) {
         let p = self.p;
 
-        // ── Embassy time driver ────────────────────────────────────
+        // ── esp-rtos scheduler + embassy time driver ──────────────
         let timg0 = TimerGroup::new(p.TIMG0);
-        esp_hal_embassy::init(timg0.timer0);
+        esp_rtos::start(timg0.timer0);
 
         // ── Vext power: GPIO21, active LOW to enable OLED ──────────
-        let vext = Output::new(p.GPIO21, Level::Low);
+        let vext = Output::new(p.GPIO21, Level::Low, OutputConfig::default());
         core::mem::forget(vext); // hold pin low permanently; drop would reset it
 
-        // ── DMA for SPI ────────────────────────────────────────────
-        let dma = Dma::new(p.DMA);
-        let dma_ch = dma.channel0.configure(false, DmaPriority::Priority0);
-
         // ── SPI + DMA for SX1262 ───────────────────────────────────
-        let spi = Spi::new_with_config(p.SPI2, SpiConfig {
-            frequency: 1u32.MHz(),
-            mode: SpiMode::Mode0,
-            ..Default::default()
-        })
+        let spi = Spi::new(
+            p.SPI2,
+            SpiConfig::default()
+                .with_frequency(Rate::from_mhz(1))
+                .with_mode(SpiMode::_0),
+        )
+        .expect("SPI init")
         .with_sck(p.GPIO9)
         .with_mosi(p.GPIO10)
         .with_miso(p.GPIO11)
-        .with_dma(dma_ch);
+        .with_dma(p.DMA_CH0);
 
         let (rx_buf, rx_desc, tx_buf, tx_desc) = esp_hal::dma_buffers!(256);
-        let dma_rx = esp_hal::dma::DmaRxBuf::new(rx_desc, rx_buf).expect("DMA RX buf");
-        let dma_tx = esp_hal::dma::DmaTxBuf::new(tx_desc, tx_buf).expect("DMA TX buf");
+        let dma_rx = DmaRxBuf::new(rx_desc, rx_buf).expect("DMA RX buf");
+        let dma_tx = DmaTxBuf::new(tx_desc, tx_buf).expect("DMA TX buf");
 
         let spi = spi.with_buffers(dma_rx, dma_tx).into_async();
 
@@ -100,13 +98,13 @@ impl Board {
             StaticCell::new();
         let spi_bus = SPI_BUS.init(embassy_sync::mutex::Mutex::new(spi));
 
-        let nss = Output::new(p.GPIO8, Level::High);
+        let nss = Output::new(p.GPIO8, Level::High, OutputConfig::default());
         let spi_device = SpiDevice::new(spi_bus, nss);
 
         // ── SX1262 control pins ────────────────────────────────────
-        let reset = Output::new(p.GPIO12, Level::High);
-        let dio1 = Input::new(p.GPIO14, Pull::Down);
-        let busy = Input::new(p.GPIO13, Pull::Down);
+        let reset = Output::new(p.GPIO12, Level::High, OutputConfig::default());
+        let dio1 = Input::new(p.GPIO14, InputConfig::default().with_pull(Pull::Down));
+        let busy = Input::new(p.GPIO13, InputConfig::default().with_pull(Pull::Down));
 
         let iv = GenericSx126xInterfaceVariant::new(reset, dio1, busy, None, None).expect("SX1262 interface init");
 
@@ -136,6 +134,7 @@ impl Board {
 
         // ── Display (SSD1306 OLED on I2C, 0x3C) ───────────────────
         let i2c = I2c::new(p.I2C0, I2cConfig::default())
+            .expect("I2C init")
             .with_sda(p.GPIO17)
             .with_scl(p.GPIO18)
             .into_async();