feat: connector YAML, TunerStudio config, build system improvements

Board connectors (all boards):
- Add connectors/main.yaml per board with full pin mapping from wiki
- Add connectors/can.yaml: register CAN_INPUT_0-7 and EFI_ADC_48-55
  in TunerStudio switch/analog input dropdowns
- Remove Knock (PA3/EFI_ADC_3) from compact & mini6ch dropdowns —
  reserved for internal ADC knock, not user-configurable

TunerStudio UI (prepend.txt all boards):
- MAIN_HELP_URL → wiki.mazduino.com
- RE_auto_update_root_url → mazduino.com/firmware/
- WIKI_CAN_SENSORS/OUTPUTS/USER_TABLES/LOGIC_OUTPUTS/MATH_CHANNELS
  → wiki.mazduino.com/firmware/...
- ts_show_cylinder_N: cap cylinder count — lite=4, compact=8, mini6ch=12
- ts_show_experimental false: hide Experimental 1/2/3 menus

Build system:
- build_boards.sh: skip Docker image rebuild if already exists;
  add ccache volume mount for faster incremental builds
- Dockerfile: install ccache
- board.mk: set EFI_EMBED_INI_MSD=FALSE on lite, compact, mini6ch, mega100
- nightly-release.yaml: extract INI from bundle ZIPs and deploy to
  GitHub Pages (gh-pages) for TunerStudio autodownload

Submodule:
- .gitmodules: point ext/rusefi to mazduino/rusefi-core (private fork)
- Update submodule to latest commit

Author: amrikarisma

.DS_Store

@@ -9,6 +9,7 @@ RUN sed -i \
     apt-get update
 RUN apt-get -y install make automake autoconf gcc-12-arm-linux-gnueabi gcc-12-arm-linux-gnueabi-base gcc-arm-none-eabi binutils-arm-none-eabi git nano openjdk-21-jdk-headless mtools dosfstools xxd
 RUN apt-get -y install openssh-server cmake rsync gdb-multiarch build-essential zip p7zip-full bc
+RUN apt-get -y install ccache
 # used for remote non-devcontainer use ex: (https://blog.jetbrains.com/clion/2020/01/using-docker-with-clion/) [also on vscode: https://code.visualstudio.com/remote/advancedcontainers/develop-remote-host]
 RUN useradd -m rusefi && yes password | passwd rusefi
 

.devcontainer/Dockerfile

@@ -126,3 +126,39 @@ jobs:
             ## TunerStudio
             Launch `rusefi_console.jar` or open TunerStudio and point it to the `.ini` file for your board.
           files: bundles/*
+
+      - name: Extract INI files from bundles
+        id: extract-ini
+        run: |
+          mkdir -p ini-pages
+          for zip in bundles/*.zip; do
+            [ -f "$zip" ] || continue
+            tmpdir=$(mktemp -d)
+            unzip -q "$zip" "*.ini" -d "$tmpdir" 2>/dev/null || true
+            for ini in "$tmpdir"/*.ini; do
+              [ -f "$ini" ] || continue
+              # Parse signature: "rusEFI master.2026.06.22.mazduino-lite.1830052633"
+              SIG=$(grep -oP 'signature\s*=\s*"\K[^"]+' "$ini" | head -1)
+              # Strip "rusEFI " prefix and split by dot
+              SIGPART="${SIG#rusEFI }"
+              IFS='.' read -r BRANCH YEAR MONTH DAY TARGET HASH <<< "$SIGPART"
+              if [ -z "$HASH" ]; then
+                echo "Skipping $ini — could not parse signature: $SIG"
+                continue
+              fi
+              DEST="ini-pages/$BRANCH/$YEAR/$MONTH/$DAY/$TARGET"
+              mkdir -p "$DEST"
+              cp "$ini" "$DEST/${HASH}.ini"
+              echo "Staged: $DEST/${HASH}.ini"
+            done
+            rm -rf "$tmpdir"
+          done
+          ls -lR ini-pages/
+
+      - name: Deploy INI files to GitHub Pages
+        uses: peaceiris/actions-gh-pages@v3
+        with:
+          github_token: ${{ secrets.GITHUB_TOKEN }}
+          publish_dir: ./ini-pages
+          destination_dir: ini
+          keep_files: true

.github/workflows/nightly-release.yaml

@@ -1 +1,2 @@
-/.idea
+/.idea
+.ccache/

.gitignore

@@ -1,3 +1,3 @@
 [submodule "ext/rusefi"]
 	path = ext/rusefi
-	url = https://github.com/rusefi/rusefi
+	url = https://github.com/mazduino/rusefi-core.git

.gitmodules

@@ -5,22 +5,29 @@ All notable changes to Mazduino firmware are documented here.
 ## [Unreleased]
 
 ### Added
-- mazduino-mega100: STM32F407VGT6 (1MB) board with full feature set, dual pinout support (board04 and UA4C) selectable via TunerStudio board action
-- mazduino-mega100-512: STM32F407VET6 (512KB) board with reduced feature set; firmware constrained to 384KB to keep tune storage sector (sector 7, 0x08060000) free
 - Nightly release workflow publishing per-board .bin, .srec, and .hex artifacts as GitHub Releases
 - Docker-based build system (`build_boards.sh`) using `--platform linux/amd64` for consistent builds on Apple Silicon and x86-64
 - TunerStudio UI flags in `prepend.txt` to hide ETB, traction control, boost, rotary, Harley-Davidson, torque model, and other features not applicable to each board variant
+- mazduino-mega100: STM32F407VGT6 (1MB) board with full feature set, dual pinout support (board04 and UA4C) selectable via TunerStudio board action
+- mazduino-mega100-512: STM32F407VET6 (512KB) board with reduced feature set; firmware constrained to 384KB to keep tune storage sector (sector 7, 0x08060000) free
 
 ### Changed
+- `_compile_unit_tests.sh` updated to use `boards/mazduino-lite/meta-info.env` as the reference board (replacing deleted root `meta-info.env`)
+- `generated/controllers/generated/` pre-generated headers regenerated to include CAN input/output feature structs and new enum values from the mazduino rusefi fork
 - mazduino-mega100 and mega100-512: status LED at PB7 enabled (`getCommsLedPin()` and `LED_CRITICAL_ERROR_BRAIN_PIN` both assigned to PB7)
 - mazduino-compact: second idle solenoid field corrected to `secondSolenoidPin`
 - mazduino-lite: knock disabled by leaving `EFI_SOFTWARE_KNOCK` undefined (not set to FALSE) so `#ifdef` guards evaluate correctly
 - mazduino-mini6ch: `ts_show_traction_control true` enabled as ETB-capable board is the only variant that supports traction control
 - Dockerfile updated to handle both `ports.ubuntu.com` (ARM64) and `archive.ubuntu.com` (x86-64) Ubuntu mirror replacements for EOL Mantic release
 
+### Removed
+- Root `meta-info.env` (SHORT_BOARD_NAME=mazduino): generic board identifier removed; all builds now reference a named board variant
+
 ### Fixed
 - Root `board_configuration.cpp`: removed forward declaration of `customBoardTsAction` which caused undefined reference linker error in CI unit test build
 - `EFI_EMBED_INI_MSD=FALSE` on mega100-512: the embedded TunerStudio INI file was contributing approximately 155KB to the firmware binary; disabling it reduced firmware from 488KB to 271KB
+- `EFI_EMBED_INI_MSD=FALSE` on all boards (mazduino-lite, mazduino-compact, mazduino-mini6ch, mazduino-mega100): CAN feature additions grew firmware beyond the 768KB linker budget; disabling INI embedding removes the 160KB ramdisk from flash. The TunerStudio INI is published as a GitHub Releases artifact instead
+- `EFI_HPFP=FALSE` on all boards: high-pressure fuel pump (GDI) control is not applicable to Mazda port-injection hardware; disabling it removes unused code
 - `board_unit_tests.mk`: added `BOARDINC` pointing to `generated/controllers/generated/` so the unit test build can find `rusefi_generated_mazduino.h` (previously the compiler could not find this file because the unit test Makefile does not include `rusefi.mk` which is what adds that path for firmware builds)
 
 ## [2025-01-01]

CHANGELOG.md

@@ -5,7 +5,7 @@ cd ext/rusefi/unit_tests/
 # This full path of the firmware directory
 FDIR=$(cd "$(dirname "$0")"; pwd -P)
 
-MI="../../../meta-info.env"
+MI="../../../boards/mazduino-lite/meta-info.env"
 
 	if [ -f "$FDIR/$MI" ]; then
 		true

_compile_unit_tests.sh

@@ -9,3 +9,10 @@ DDEFS += -DRAM_UNUSED_SIZE=100
 DDEFS += -DSTM32_ADC_USE_ADC3=TRUE
 DDEFS += -DEFI_SOFTWARE_KNOCK=TRUE -DSTM32_ADC_USE_ADC3=TRUE
 DDEFS += -DKNOCK_SPECTROGRAM=TRUE
+
+# INI embedded in flash overflows the 768KB budget with CAN feature additions.
+# INI is published as a GitHub Releases artifact instead.
+DDEFS += -DEFI_EMBED_INI_MSD=FALSE
+
+# Mazda PFI — no GDI high-pressure fuel pump
+DDEFS += -DEFI_HPFP=FALSE

boards/mazduino-compact/board.mk

@@ -26,10 +26,11 @@ static void customBoardDefaultConfiguration() {
     engineConfiguration->clt.adcChannel         = EFI_ADC_4;  // PA4
     engineConfiguration->iat.adcChannel         = EFI_ADC_5;  // PA5
 
-    engineConfiguration->analogInputDividerCoefficient = 1.47f;
+    engineConfiguration->analogInputDividerCoefficient = 1.56f; // 5.6k high side/10k low side
+    engineConfiguration->vbattDividerCoeff = (82.0f + 10.0f) / 10.0f; // 82k high side/10k low side
     engineConfiguration->adcVcc = 3.3f;
-    engineConfiguration->clt.config.bias_resistor = 2490;
-    engineConfiguration->iat.config.bias_resistor = 2490;
+    engineConfiguration->clt.config.bias_resistor = 2700;
+    engineConfiguration->iat.config.bias_resistor = 2700;
 
     // Injectors - 4 channel
     engineConfiguration->injectionPins[0] = Gpio::D8;

boards/mazduino-compact/board_configuration.cpp

@@ -0,0 +1,64 @@
+pins:
+  - id: CAN_INPUT_0
+    class: switch_inputs
+    ts_name: CAN Switch 1
+
+  - id: CAN_INPUT_1
+    class: switch_inputs
+    ts_name: CAN Switch 2
+
+  - id: CAN_INPUT_2
+    class: switch_inputs
+    ts_name: CAN Switch 3
+
+  - id: CAN_INPUT_3
+    class: switch_inputs
+    ts_name: CAN Switch 4
+
+  - id: CAN_INPUT_4
+    class: switch_inputs
+    ts_name: CAN Switch 5
+
+  - id: CAN_INPUT_5
+    class: switch_inputs
+    ts_name: CAN Switch 6
+
+  - id: CAN_INPUT_6
+    class: switch_inputs
+    ts_name: CAN Switch 7
+
+  - id: CAN_INPUT_7
+    class: switch_inputs
+    ts_name: CAN Switch 8
+
+  - id: EFI_ADC_48
+    class: analog_inputs
+    ts_name: CAN Analog 1
+
+  - id: EFI_ADC_49
+    class: analog_inputs
+    ts_name: CAN Analog 2
+
+  - id: EFI_ADC_50
+    class: analog_inputs
+    ts_name: CAN Analog 3
+
+  - id: EFI_ADC_51
+    class: analog_inputs
+    ts_name: CAN Analog 4
+
+  - id: EFI_ADC_52
+    class: analog_inputs
+    ts_name: CAN Analog 5
+
+  - id: EFI_ADC_53
+    class: analog_inputs
+    ts_name: CAN Analog 6
+
+  - id: EFI_ADC_54
+    class: analog_inputs
+    ts_name: CAN Analog 7
+
+  - id: EFI_ADC_55
+    class: analog_inputs
+    ts_name: CAN Analog 8