[Jammy2211]

Summary

Grouped names such as lens_0 through lens_29 displayed lens_0 - lens_9 because endpoints were selected lexically. Order numeric suffixes when every name shares the same nonnumeric prefix; retain the existing integer range compaction and lexical fallback.

Closes #1703.

API Changes

Model summary labels now show the correct numeric range. No model values, signatures, serialization or identifiers change. See full details below.

Test Plan

• Full serial suite: 3,703 passed, 121 skipped, 1 xfailed.
• Representation and GraphSpec tests: 89 passed.
• Covers 30 lens/20 source entries, reversed input order, mixed prefixes, nonnumeric names, repeated singleton names, padded suffixes and integer gaps.
• Free, fixed and mixed model hashes, search IDs and exact output-folder paths match unmodified main.
• GitHub Python 3.12/3.13 checks pending.

Full API Changes (for automation & release notes)

Changed Behaviour

• find_groups: shared-prefix numeric labels select their numeric endpoints for the model summary.

Migration

None. No search/model identifiers or output-folder names change.

Workflow

Human /prm required; no merge authorized. Heart readiness STALE: CI unavailable to the local Heart collector, no test-run report, install verification or release validation. No release readiness or independent-review claim.

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