Automate boot unit inclusion with architecture-aware Moderne analysis

- Replace boot.mgr's static unit list with generated dangling_units.inc
- Generate Pascal LSTs and run the dangling-unit recipe before compilation
- Exclude Wasuro, inactive architectures, and NOT_DANGLING units
- Add ASURO_ARCH selection with an x86 default
- Mark unfinished legacy units as NOT_DANGLING
- Inherit pinned Moderne tooling in the builder image
- Ensure Drone pulls the latest builder image
- Document the updated build pipeline in MkDocs

Validation:
- Full x86 ISO build and VirtualBox boot succeeded
- 1,133 kernel tests passed with no failures
- x86_64 build failed clearly due to unavailable sources

Dockerfile

@@ -1,4 +1,5 @@
-FROM ubuntu:latest
+ARG RECIPES_IMAGE=t3hn3rd/moderne-asuro-recipes:0.1.1@sha256:eaf54188053511dad9c620a8fb98b0f50c41770cd49a0b3d71a0538386522011
+FROM ${RECIPES_IMAGE}
 
 VOLUME ["/code"]
 
@@ -7,7 +8,7 @@ RUN dpkg --add-architecture i386
 RUN apt-get update && apt-get install -y \
 	curl dos2unix wget git make nasm binutils xorriso grub-pc-bin gcc gcc-multilib \
 	python3 python3-pip python3-pil && \
-	apt-get clean my room
+	apt-get clean && rm -rf /var/lib/apt/lists/*
 
 RUN pip3 install --no-cache-dir --break-system-packages "mkdocs>=1.6,<2" mkdocs-material
 
@@ -20,6 +21,5 @@ RUN curl -sL https://sourceforge.net/projects/freepascal/files/Linux/$FPC_VERSIO
 ADD https://raw.githubusercontent.com/fsaintjacques/semver-tool/master/src/semver /usr/bin/semver
 RUN chmod +x /usr/bin/semver
 WORKDIR /code
-RUN find . -type f -print0 | xargs -0 dos2unix
 ENTRYPOINT ["/bin/bash", "-c"]
-CMD ["find toolchain -name '*.sh' -exec dos2unix {} + 2>/dev/null; find toolchain -name '*.sh' -exec chmod +x {} +; bash toolchain/compile.sh"]
+CMD ["find toolchain -name '*.sh' -exec dos2unix {} + 2>/dev/null; find toolchain -name '*.sh' -exec chmod +x {} +; bash toolchain/compile.sh"]