feat: improve input processing and add extra channel in zencode-exec #563

Job	Run time
🚨 C lint	23s
🚨 REUSE Compliance	14s
🚨 Lua lint	18s
🐯 js build & checks (14.x)	4m 21s
🐯 js build & checks (16.x)	3m 8s
🐯 js build & checks (18.x)	3m 39s
🐹 go build & checks	0s
🥷 meson/ninja build (clang-9)	2m 4s
🥷 meson/ninja build (clang-10)	2m 26s
🥷 meson/ninja build (clang-11)	1m 52s
🥷 meson/ninja build (gcc-7)	3m 13s
🥷 meson/ninja build (gcc-8)	2m 29s
🥷 meson/ninja build (gcc-9)	2m 51s
🥷 meson/ninja build (gcc-10)	2m 24s
🐍 Python checks	0s
🦀 rust build & checks	0s
🤖 Semantic release	0s
🐯 js build release	0s
🐍 Python build & check on armv7	0s
🐍 Python build & checks	0s
🐧 Binary builds on Ubuntu	0s
🐍 Python create source distribution	0s
🍎 mac osx release build	0s
📦 Pack release	0s
📦 npm release	0s
📦 PyPI release	0s
🧻 Remove tag on fail	0s
	29m 22s

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