flowrun.path replaced by path_nodes and path_times

[rowanseymour]

No description provided.

[Copilot]

Pull Request Overview

This PR removes the deprecated path JSON column from the flows_flowrun table and fully migrates to the newer path_nodes and path_times array columns for storing flow run path data.

• Removes the path column from the flows_flowrun table schema
• Updates test data to use path_nodes and path_times arrays instead of JSON path format
• Simplifies the archive query to only use the new array-based path format

Reviewed Changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated no comments.

File	Description
testdb.sql	Removes path column from table schema and converts INSERT statements to use array-based path format
archives/runs.go	Simplifies path query logic by removing fallback to deprecated JSON path column

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 59.11%. Comparing base (29ba3ed) to head (fadc588).

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #119   +/-   ##
=======================================
  Coverage   59.11%   59.11%           
=======================================
  Files           7        7           
  Lines        1311     1311           
=======================================
  Hits          775      775           
  Misses        430      430           
  Partials      106      106           

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