Various error handling and processing fixes

[arnetheduck]

• remove redundant gcsafe/raises
• rework async raises to chronos 4.0 where this was not yet done
• streamline logging between http/socket/ws
  • don't log error when raising exceptions (whoever handles should log)
  • debug-log requests in all variants of server and client
• unify ipv4/ipv6 address resolution, with preference for ipv6
• fix server start so that it consistently raises only when no addresses could be bound
• also return response from serveHTTP when using chunked encoding

[tersec]

• error: redeclaration of ‘qX60gensym0_’ with no linkage with nested templates nim-lang/Nim#24338 is likely related to the https://github.com/status-im/nim-json-rpc/actions/runs/11424736011/job/31785448003?pr=228 devel CI failures:

[NimScript] exec: nim c  --styleCheck:usages --styleCheck:error --verbosity:0 --hints:off --skipParentCfg --skipUserCfg --outdir:build --nimcache:build/nimcache -f --threads:on -d:chronicles_log_level=ERROR  -d:chronicles_log_level=TRACE -d:"chronicles_sinks=textlines[dynamic],json[dynamic]" --mm:refc tests/all
/home/runner/work/nim-json-rpc/nim-json-rpc/tests/testserverclient.nim(117, 1) template/generic instantiation of `suite` from here
/home/runner/work/nim-json-rpc/nim-json-rpc/tests/testserverclient.nim(118, 3) template/generic instantiation of `test` from here
/home/runner/.nimble/pkgs2/unittest2-0.2.3-6936b4e4676c9b37537d93f31cb8fc46f4ebaacb/unittest2.nim(1128, 24) template/generic instantiation of `failingOnExceptions` from here
/home/runner/.nimble/pkgs2/unittest2-0.2.3-6936b4e4676c9b37537d93f31cb8fc46f4ebaacb/unittest2.nim(1132, 26) template/generic instantiation of `failingOnExceptions` from here
/home/runner/work/nim-json-rpc/nim-json-rpc/tests/testserverclient.nim(130, 5) Warning: Raises Defect on future failure, fix your code and use asyncSpawn!; asyncCheck is deprecated [Deprecated]
/home/runner/work/nim-json-rpc/nim-json-rpc/build/nimcache/@m..@sjson_rpc@[email protected]: In function ‘serveHTTP__OOZjson95rpcZserversZhttpserver_u71’:
/home/runner/work/nim-json-rpc/nim-json-rpc/build/nimcache/@m..@sjson_rpc@[email protected]:1894:83: error: redeclaration of ‘sX60gensym105_’ with no linkage
 1894 |                                         tyObject_Result__wqhWq1B5QY9az9bOBYrpgR8Q sX60gensym105_;
      |                                                                                   ^~~~~~~~~~~~~~
/home/runner/work/nim-json-rpc/nim-json-rpc/build/nimcache/@m..@sjson_rpc@[email protected]:1892:83: note: previous declaration of ‘sX60gensym105_’ with type ‘tyObject_Result__wqhWq1B5QY9az9bOBYrpgR8Q’
 1892 |                                         tyObject_Result__wqhWq1B5QY9az9bOBYrpgR8Q sX60gensym105_;
      |                                                                                   ^~~~~~~~~~~~~~
Error: execution of an external compiler program 'gcc -c  -w -fmax-errors=3 -pthread -I/home/runner/.nimble/pkgs2/bearssl-0.2.5-550e6f9321b85de53bba9c0ffab9c95ffbe12ab3/bearssl/abi -I/home/runner/.nimble/pkgs2/bearssl-0.2.5-550e6f9321b85de53bba9c0ffab9c95ffbe12ab3/bearssl/abi/../csources/src/ -I/home/runner/.nimble/pkgs2/bearssl-0.2.5-550e6f9321b85de53bba9c0ffab9c95ffbe12ab3/bearssl/abi/../csources/inc/ -I/home/runner/.nimble/pkgs2/bearssl-0.2.5-550e6f9321b85de53bba9c0ffab9c95ffbe12ab3/bearssl/abi/../csources/tools/ -DBR_USE_UNIX_TIME=1 -DBR_USE_URANDOM=1 -DBR_LE_UNALIGNED=1 -DBR_64=1  -DBR_amd64=1 -DBR_INT128=1 -I/home/runner/.nimble/pkgs2/zlib-0.1.0-faccf2d54a8fe919aa2ac01b5af79a3b49b045fb/zlib/csources -DHAVE_UNISTD_H   -I/home/runner/work/nim-json-rpc/nim-json-rpc/nim/lib -I/home/runner/work/nim-json-rpc/nim-json-rpc/tests -o /home/runner/work/nim-json-rpc/nim-json-rpc/build/nimcache/@m..@sjson_rpc@[email protected] /home/runner/work/nim-json-rpc/nim-json-rpc/build/nimcache/@m..@sjson_rpc@[email protected]' failed with exit code: 1

That specific bug applies across versions, whereas this one only appears in devel, but the difference seems due to some details of how the async transformation works.

[metagn]

Thanks for minimizing (hopefully it's the same issue), more specifically it was triggered by nim-lang/Nim#24316: before it s was attached to the closure environment instead of being locally declared which worked around the redeclaration issue.