Update to AS6

[sclaiborne]

What

• Replaced AS4 example project with fresh AS6 project via librarybuilderproject@1.0.1 (new CPUs 5APC4100/X20CP0484; full _AS libs in ARM Cpu.sw)
• Bumped library to 2.0.0 (was past 1.x pre-AS6)
• Installed all 5 Loupe deps via lpm and registered each as a Cpu.sw <LibraryObject Language="Binary"> entry (vartools, databuffer, tcpcomm, stringext, websocket)
• Source-referenced OMJSON in Loupe/Package.pkg and registered as <LibraryObject Language="ANSIC"> in both Cpu.sw
• Added .github/workflows/build.yml + build-export-publish.yml (SerComm template; static LIBRARY: OMJSON; build_mode snake_case)
• Added src/Ar/OMJSON/package.json with all 5 Loupe deps at >=1.0.0
• Removed Jenkinsfile

Loupe deps

• VarTools >= 1.0.0 ✓
• DataBuffer >= 1.0.0 ✓
• TCPComm >= 1.0.0 ✓
• StringExt >= 1.0.0 ✓
• WebSocket >= 1.0.0 ✓

Verification

Both Intel and ARM build clean (only the benign 447 licensing warning) and produce OMJSON.br runtime modules.