feat: provide proper path in errors

[stuebingerb]

All GraphQL errors now include a proper path in the response, pointing to the node where it occurred. In combination with partial responses (tbd) this allows clients to distinguish null values from resolvers from null values due to an error.

Resolves #452

[codecov]

Codecov Report

❌ Patch coverage is 80.00000% with 6 lines in your changes missing coverage. Please review.
✅ Project coverage is 84.00%. Comparing base (97360f6) to head (5d59c53).
⚠️ Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
.../schema/execution/AbstractRemoteRequestExecutor.kt	78.94%	1 Missing and 3 partials ⚠️
...main/kotlin/com/apurebase/kgraphql/GraphQLError.kt	81.81%	1 Missing and 1 partial ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #567      +/-   ##
==========================================
+ Coverage   83.94%   84.00%   +0.06%     
==========================================
  Files         152      152              
  Lines        4952     4978      +26     
  Branches      855      861       +6     
==========================================
+ Hits         4157     4182      +25     
  Misses        495      495              
- Partials      300      301       +1     

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[github-actions]

Bencher Report

Branch	feature/proper-error-path
Testbed	ubuntu-latest

Click to view all benchmark results

Benchmark	Throughput	Benchmark Result operations / second (ops/s) (Result Δ%)	Lower Boundary operations / second (ops/s) (Limit %)
com.apurebase.kgraphql.FunctionExecutionBenchmark.benchmarkFunctionExecution	📈 view plot 🚷 view threshold	6,056,749.99 ops/s (+2.02%) Baseline: 5,936,997.73 ops/s	5,420,671.34 ops/s (89.50%)
com.apurebase.kgraphql.ParallelExecutionBenchmark.queryBenchmark	📈 view plot 🚷 view threshold	1.30 ops/s (+0.01%) Baseline: 1.30 ops/s	1.30 ops/s (99.78%)
com.apurebase.kgraphql.QueryBenchmark.executionError	📈 view plot 🚷 view threshold	15,173.98 ops/s (-9.86%) Baseline: 16,833.28 ops/s	3,735.54 ops/s (24.62%)
com.apurebase.kgraphql.QueryBenchmark.largeList	📈 view plot 🚷 view threshold	4.73 ops/s (+7.83%) Baseline: 4.39 ops/s	2.48 ops/s (52.46%)
com.apurebase.kgraphql.QueryBenchmark.largeListWithFragment	📈 view plot 🚷 view threshold	5.27 ops/s (+4.51%) Baseline: 5.04 ops/s	3.93 ops/s (74.55%)
com.apurebase.kgraphql.QueryBenchmark.manyChildren	📈 view plot 🚷 view threshold	187.66 ops/s (-2.28%) Baseline: 192.05 ops/s	171.14 ops/s (91.20%)
com.apurebase.kgraphql.QueryBenchmark.manyDataChildren	📈 view plot 🚷 view threshold	8.96 ops/s (+0.12%) Baseline: 8.95 ops/s	8.87 ops/s (98.92%)
com.apurebase.kgraphql.QueryBenchmark.manyOperations	📈 view plot 🚷 view threshold	289.04 ops/s (+0.07%) Baseline: 288.83 ops/s	245.10 ops/s (84.80%)
com.apurebase.kgraphql.QueryBenchmark.manyOperationsWithFragment	📈 view plot 🚷 view threshold	292.76 ops/s (-2.69%) Baseline: 300.87 ops/s	272.97 ops/s (93.24%)
com.apurebase.kgraphql.QueryBenchmark.nestedObject	📈 view plot 🚷 view threshold	6,840.49 ops/s (-12.50%) Baseline: 7,817.99 ops/s	6,597.95 ops/s (96.45%)
com.apurebase.kgraphql.RequestCachingBenchmark.invalidRequest	📈 view plot 🚷 view threshold	224,726.37 ops/s (-1.01%) Baseline: 227,023.61 ops/s	208,963.56 ops/s (92.99%)
com.apurebase.kgraphql.RequestCachingBenchmark.largeRequest	📈 view plot 🚷 view threshold	7,068.05 ops/s (-12.19%) Baseline: 8,049.28 ops/s	6,924.86 ops/s (97.97%)
com.apurebase.kgraphql.RequestCachingBenchmark.smallRequest	📈 view plot 🚷 view threshold	10,368.05 ops/s (-12.47%) Baseline: 11,845.19 ops/s	9,782.62 ops/s (94.35%)
com.apurebase.kgraphql.SimpleExecutionOverheadBenchmark.benchmark	📈 view plot 🚷 view threshold	464,184.01 ops/s (-1.52%) Baseline: 471,361.09 ops/s	454,422.14 ops/s (97.90%)

🐰 View full continuous benchmarking report in Bencher