feat(document): log execution times for benchmarking

[jvallesm]

Because

• We want to benchmark the performance of Docling vs pdfplumber when converting PDF to Markdown.

This commit

• Cleans up the transformer structure in the component. Several levels of indirection were introduced with no clear purpose, which made it difficult to share a logger instance across functions.
• Logs the timestamp at several points in the document conversion execution, indexed by the pipeline run ID.
• Additionally, make coverage runs the Docker container (again) as root in order to share the local code with the instance.

[linear]

INS-7276 Add Docling to document operator

[jvallesm]

QA ✅

Benchmark logs

{
  "L": "INFO",
  "T": "2025-02-06T14:29:36.902Z",
  "M": "PDF to Markdown conversion",
  "pipelineTriggerID": "09313b2b-e6f5-4099-8ee9-6f3d7e629cb6",
  "executionID": "5d1110bf-3ece-4c7b-954e-c1b182f171b2",
  "start": "2025-02-06T14:29:26.013Z",
  "repair": "2025-02-06T14:29:26.209Z",
  "convert": "2025-02-06T14:29:36.900Z",
  "handleOutput": "2025-02-06T14:29:36.902Z",
  "durationInSecs": 10.888739176,
  "ok": true
}

Capture unwanted stderr / stdout logs

{
  "L": "INFO",
  "T": "2025-02-07T08:23:31.124Z",
  "M": "PDF to Markdown Python script produced conversion logs",
  "pipelineTriggerID": "6f8f39e6-553a-42a8-a240-f09535ffc21b",
  "executionID": "731c6034-f224-4503-98b6-a68e904392d1",
  "conversionLogs": [
    "Downloading detection model, please wait. This may take several minutes depending upon your network connection.",
    "Downloading recognition model, please wait. This may take several minutes depending upon your network connection."
  ]
}

[codecov]

Codecov Report

Attention: Patch coverage is 64.87805% with 72 lines in your changes missing coverage. Please review.

Project coverage is 19.53%. Comparing base (1aa40c2) to head (2c5577b).
Report is 24 commits behind head on main.

Files with missing lines	Patch %	Lines
...tor/document/v0/transformer/markdowntransformer.go	61.00%	27 Missing and 12 partials ⚠️
...mponent/operator/document/v0/transformer/images.go	35.71%	6 Missing and 3 partials ⚠️
...onent/operator/document/v0/transformer/markdown.go	84.44%	5 Missing and 2 partials ⚠️
...erator/document/v0/convert_document_to_markdown.go	72.72%	4 Missing and 2 partials ⚠️
...mponent/operator/document/v0/transformer/helper.go	25.00%	6 Missing ⚠️
pkg/data/document.go	0.00%	5 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #969      +/-   ##
==========================================
+ Coverage   19.22%   19.53%   +0.31%     
==========================================
  Files         426      436      +10     
  Lines       84603    85104     +501     
==========================================
+ Hits        16264    16629     +365     
- Misses      66002    66115     +113     
- Partials     2337     2360      +23     

Flag	Coverage Δ
unittests	19.53% <64.87%> (+0.31%)	⬆️

Flags with carried forward coverage won't be shown. Click here to find out more.

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.