Update validations, static tests for caching, refactor scripts

[MDA2AV]

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[MDA2AV]

Frameworks failing the new static freshness (no pre-caching) check

From a full local validation run on this branch across the static-supporting, non-engine frameworks. The new check mutates a static asset on disk mid-run and requires the response to reflect the change within 30s — i.e. permanent in-memory preloading/caching of static files is no longer allowed (standard or tuned).

19 frameworks fail the check (33 pass it, so it discriminates correctly rather than over-firing).

Fail only this check — pure pass→fail flips introduced by this PR (13)

• aspnet-minimal
• aspnet-minimal-aot
• aspnet-minimal-ioxide
• fletch
• frankenphp-trueasync
• genhttp-kestrel
• humming-bird
• rage
• rails
• servicestack
• swoole
• trillium-tuned
• userver

Fail this check plus an unrelated check (6)

• genhttp — also HTTP fragmentation (split-request returns empty body)
• mq-bridge — also async-db (returns count=0)
• mq-bridge-py — also async-db (returns count=0)
• pyronova — also async-db/crud (all empty)
• quarkus-jvm — also async-db (returns count=0)
• ultimate-express — also json-comp (no Content-Encoding)

Typical failure line:

FAIL [static freshness (no pre-caching)]: static response never reflected the on-disk
change within 30s — permanent pre-loading/caching of static files is not allowed
(standard or tuned).