Overlay analysis required 20 GB of available disk space, lowered to
14 GB when overlay_analysis_resource_checks_v2 was enabled. That gave
us a single step to roll out, and any further reduction needed another
flag and another release.

Determine the threshold from the new overlay_analysis_min_disk_N_gb
flags instead, taking the lowest one that is enabled so that a lower
limit can be rolled out to a subset of repositories without first
disabling the flag above it. When none are enabled, the 14 GB limit
now applies unconditionally, replacing the 20 GB default.

Thresholds remain in decimal MB, matching the bytes-per-MB convention
the disk check already used, so the effective byte values are unchanged
from the previous 14 GB path. Also log the available and required space
at debug level when the check passes, so that run logs show which
threshold took effect.

Co-authored-by: Copilot App <223556219+Copilot@users.noreply.github.com>

The flag no longer has any effect now that its 14 GB threshold is the
unconditional default, so remove it. Setting
CODEQL_ACTION_OVERLAY_ANALYSIS_RESOURCE_CHECKS_V2 no longer does
anything.

Co-authored-by: Copilot App <223556219+Copilot@users.noreply.github.com>

Say "at or above" in the debug message logged when the check passes,
since the comparison accepts exactly the minimum.

Check each feature flag against the threshold its name declares, rather
than only exercising a few of them, so that a mistake in one of the
mappings cannot go unnoticed. Both sides of the boundary are needed to
pin a threshold down: a mapping to a lower value would still pass the
case at the limit, and one to a higher value would still fail the case
below it.

Co-authored-by: Copilot App <223556219+Copilot@users.noreply.github.com>

The comparison accepts exactly the minimum, so say "at or above", to
match the wording of the disk space check.

Co-authored-by: Copilot App <223556219+Copilot@users.noreply.github.com>

This is particularly important for the first time that `getCachedCodeQlVersion` is invoked, as this cache file will not yet exist.

Co-authored-by: Michael B. Gale <mbg@github.com>

This brings them out of the crowded all-purpose `util.ts` and into `cli/output-cache.ts` where they are exclusively used.

This will ensure it works nicely with `JSON.stringify`. And, then we can validate the type before marshaling.

Mergeback v4.37.7 refs/heads/releases/v4 into main

# Conflicts:
#	lib/entry-points.js

Persist CodeQL version output to file rather than environment

…ation-error

Make `EACCES` when installing CodeQL CLI a `ConfigurationError`

Resolve the overlap with the separately shipped promotion of the overlay resource checks while preserving the feature-flagged minimum disk thresholds.

Co-authored-by: Copilot App <223556219+Copilot@users.noreply.github.com>

Document each minimum disk feature flag individually and replace the tuple list with an explicit feature-to-threshold mapping.

Co-authored-by: Copilot App <223556219+Copilot@users.noreply.github.com>

Determine the overlay minimum disk space requirement from feature flags

Merge main into releases/v4

This reverts commit 5f47b57.

This reverts commit 2a073c8.

….8-db488ddef