Merge pull request #2507 from zerotier/adam/1.16

V1.16 kitchen sink branch, 1.16 ready.

Author: adamierymenko

.clangd

@@ -4,6 +4,8 @@ CompileFlags:
     - "-I../ext"
     - "-I../ext/prometheus-cpp-lite-1.0/core/include"
     - "-I../ext/prometheus-cpp-lite-1.0/simpleapi/include"
+    - "-I../ext/opentelemetry-cpp-1.21.0/api/include"
     - "-I./ext"
     - "-I./ext/prometheus-cpp-lite-1.0/core/include"
     - "-I./ext/prometheus-cpp-lite-1.0/simpleapi/include"
+    - "-I./ext/opentelemetry-cpp-1.21.0/api/include"

.gitignore

@@ -6,16 +6,19 @@
 /zerotier
 /nltest
 
-# IDE stuff
+# IDE and dev tool stuff
 /.idea
 /.nova
 /compile_commands.json
+/.claude
+/.aider
 
 # OS-created garbage files from various platforms
 .DS_Store
 .Apple*
 Thumbs.db
 @eaDir
+lost+found
 ._*
 
 # Windows build droppings
@@ -58,6 +61,9 @@ zt1-src.tar.gz
 /MacEthernetTapAgent
 
 # Miscellaneous temporaries, build files, etc.
+ext/installfiles/windows/*.back*.aip
+tcp-proxy/tcp-proxy
+rustybits/target
 *.log
 *.opensdf
 *.user
@@ -101,7 +107,6 @@ windows/ZeroTierOne/Debug/
 /ext/installfiles/windows/chocolatey/zerotier-one/*.nupkg
 
 # Miscellaneous mac/Xcode droppings
-.DS_Store
 .Trashes
 *.swp
 *~.nib
@@ -126,18 +131,13 @@ workspace2/
 zeroidc/target/
 tcp-proxy/target
 
-#snapcraft specifics
+# Snapcraft Linux build stuff
 /parts/
 /stage/
 /prime/
-
 *.snap
-
 .snapcraft
 __pycache__
 *.pyc
 *_source.tar.bz2
 snap/.snapcraft
-tcp-proxy/tcp-proxy
-rustybits/target
-ext/installfiles/windows/*.back*.aip