fix: park EP script as NEEDS_FIX no_run for release testing

[Jammy2211]

Why

EP is not release-ready, so every EP script in the release matrix is being
parked. This is the autofit_workspace half; the root-cause investigation and
the failing script live in
autofit_workspace_test#82 (scripts/graphical/ep.py).

scripts/features/expectation_propagation.py passes today. It is parked
because it shares the EP machinery whose message projection is unstable, not
because it is currently failing.

Root cause (summary — full detail in autofit_workspace_test#82)

The 2026-08-03 nightly release integrate failed on graphical/ep.py
(PyAutoHeart run 30788224561). Reproduced locally under the release profile:

• A truncated per-factor search projects a posterior with an effective sample
  size of 1 — a single sample carries all the weight, so the weighted std of
  every parameter is exactly 0.
• EP feeds that degenerate projection back as the next cycle's prior (q*
  arrives already collapsed: q*_sigma=1.5e-06 against a healthy
  cavity_sigma=30).
• The next search draws initial points that all yield an identical log
  likelihood → InitializerException.

Damping does not help (q* is degenerate before damping applies) and
check_sigma_collapse misses it (the collapse is a single-step drop, not the
monotone shrinkage it looks for). See PyAutoFit #1332 F10.

Change

One NEEDS_FIX-tagged entry in config/build/no_run.yaml, so every mega-run
surfaces it with a warning banner until EP is fixed.

Verification

• Pattern is .py-anchored and checked against the runner's own should_skip:
  exactly 1 script newly skipped, no over-match, not inert.
• Parses via find_needs_fix_skips with the correct date and reason.
• Verified by pattern-match rather than a full shard run (the shard is slow);
  the equivalent end-to-end runner check was done in autofit_workspace_test#82,
  where it exits 0.

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