feat(items): give power crystals restrained light

[zoeyrose]

Summary

• give the base power crystal a restrained radius-1 fff0c0 glow inherited by all six artifact variants
• preserve the immutable Classic lifecycle record as source-behavior provenance without claiming replacement-runtime execution
• extend the cumulative main semantic ledger while retaining replacement-specific guidance and existing classic_views

Closes #95.

This is the canonical main companion to merged 1.x PR #119 (371845c879955cb6910e2ac86b8ecf7ce7fca65e).

Acceptance result

• power_crystal gains only glow_radius 1 and light_color fff0c0
• mana_crystal_25, mana_crystal_50, mana_crystal_100, and gandyld_crystal_1 through _3 inherit one non-amplifying radius-1 source
• the Marigold display remains composed beside stronger neutral helper lighting and the currently non-emitting crystal ball
• charge capacity, artifact identity, quest upgrades, merchant behavior, value, weight, face, animation, and every other gameplay field remain unchanged
• the archetype and 72-line lifecycle record match merged 1.x byte-for-byte
• all seven source/artifact semantic digests and all four affected map digests match merged 1.x
• the audit guide remains intentionally main-native and preserves the replacement runtime boundary

Current inventory

• 104 reviewed archetypes and 10 reviewed artifacts
• 11,445 effective light instances across 632 maps
• 5,752 explicit colors and 5,807 intentional neutral emitters
• zero unreviewed emitters

Evidence policy

• no maps/light-source-evidence/**, manifest, proof scene, capture tooling/test, or capture-bound views/evidence_focus field is restored
• existing classic_views remain unchanged as line-native historical provenance
• optional renderer diagnostics remain generated only under ignored build/ or deployment-owned output
• replacement validation proves authored/schema/catalog/semantic compatibility without claiming integrated runtime rendering

Coordinates

• base: main@a14e70cc83686723405196b70ff4fca18bc975e8
• head: 9d2f579b963b9726a7f3b62d9628fe09e8ea34cb
• commits: exactly one
• changed paths: exactly four — power_crystal.arc, two review documents, and maps/light-source-review.json

Validation

• python3 tools/world_content_audit.py lights --check — passed with the inventory above
• python3 tools/validate.py — 129 tests plus lossless content, schema, catalog, contracts, syntax prototypes, licensing, and runtime collection passed
• git diff --check
• jq empty maps/light-source-review.json
• git ls-files 'maps/light-source-evidence/*' — empty
• focused whole-diff review — exactly two gameplay-field additions, no map edits, and no changes to views, evidence_focus, or classic_views
• cross-line comparison — archetype, lifecycle record, seven source/artifact digests, and four affected map digests match merged 1.x

Merge order

Merge only after PR #119, which is already squash-merged to 1.x as 371845c879955cb6910e2ac86b8ecf7ce7fca65e. This is the second and final merge for #95 before proceeding to #96 / PR #120.

[github-actions]

🎉 This PR is included in version 2.8.0 🎉

The release is available on:

• v2.8.0
• GitHub release

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