Bug Fix - V2 PatientProfiles

[CodeByKarthik]

🦋 Bug Fix - #25

PR Description

Makes the PatientProfiles add* scripts usable in 5s-TES by saving their added columns to the database, and fixes the export in summariseCohort.R so the summary can be written to /outputs.

1. add* scripts save their results

Each add* script now writes the cohort, with its new columns, back to the database before disconnecting:

cdm[[arguments$name]] <- cohort |>
  dplyr::compute(name = arguments$name, temporary = FALSE, overwrite = TRUE)

This runs the query and stores the result as a permanent table under the cohort's own name, so a later executor (e.g. summariseCohort.R) can read the added columns.

2. Fixed export in R/summariseCohortTable.R

omopgenerics::exportSummarisedResult(
  summary_df,
  minCellCount = 5,
  fileName = basename(output_path),
  path = dirname(output_path)
)

Closes #25