consolidate and streamline build (#2469)

* consolidate and streamline build

* fix workflow syntax

* fix workflow syntax

* fix workflow syntax

* fix workflow syntax

* fix build scripts

* only build platform-specific system images

* fix build script

* more build fixes

* fix

* fix compat build for x86

* wat

* checkout

* Prevent rebuild of compiled artifacts

* Update startos-iso.yaml

* Update startos-iso.yaml

* fix raspi build

* handle missing platform better

* reduce arm vcpus

* remove arch and platform from fe config, add to patch db

---------

Co-authored-by: Matt Hill <mattnine@protonmail.com>

.gitignore

@@ -16,13 +16,15 @@ deploy_web.sh
 secrets.db
 .vscode/
 /cargo-deps/**/*
+/PLATFORM.txt
 /ENVIRONMENT.txt
 /GIT_HASH.txt
 /VERSION.txt
-/embassyos-*.tar.gz
 /eos-*.tar.gz
 /*.deb
 /target
 /*.squashfs
-/debian
-/DEBIAN
+/results
+/dpkg-workdir
+/compiled.tar
+/compiled-*.tar