[Excurs1ons]

🤖 Generated by Antigravity (Google DeepMind)

Summary

Add an explicit pin/unpin/is_pinned API to ResourceManager (Option A from #172) while preserving Handle<T>: Copy. Automatic memory budget eviction (LRU and FIFO) filters out pinned slots from eviction candidates, preventing live handles from being discarded and failing with NotLoaded.

• Added pin_count: u32 to internal Slot.
• In ResourceManager::evict, filter candidates to only slots where pin_count == 0.
• Added pin, unpin, is_pinned, pin_count for typed Handle<T>, type-erased AnyHandle, and AssetId.
• Added error handling with RuntimeError::PinUnderflow if unpin is called with count 0.
• unload, unload_id, and unload_all reset pin_count to 0.
• Added comprehensive unit tests in runtime::tests covering eviction skipping pinned slots, out-of-memory when all candidate assets are pinned, eviction succeeding once unpinned, generation mismatch checks, and unload resets.

Fixes #172

Self-check (scripts/pr_ready.py)

• mode: full · base: origin/master · HEAD: 6880a5f · changed: 2 file(s)
• crates: prism-asset

Check	Result	Detail
whitespace / conflict markers	✅	clean
artifact / secret guard	✅	2 file(s) checked
format (changed .rs)	✅	2 file(s)
clippy (1 crate)	✅	-D warnings
test (1 crate)	✅	102 passed
shader bindings drift	⏭️	no shader changes
editor fixture drift	⏭️	schema untouched
editor build	⏭️	editor untouched

Result: ✅ all checks passed

[chatgpt-codex-connector]

Codex Review Summary

This comment shows the latest Codex review activity on this pull request.

Review	Status	Commit	Review trigger
📝 Code Review	⚠️ Failed 2026-10-27T17:21:29.677303Z We couldn’t complete this review. Comment @codex review to try again.	6880a5f	PR opened

ℹ️ About Codex in GitHub

Your team has set up Codex to review pull requests in this repo. Reviews are triggered when you

• Open a pull request for review
• Mark a draft as ready
• Comment "@codex review" or "@codex security review".

Codex reacts with 👀 while any review is running, comments if it has suggestions, and reacts with 👍 once all reviews finish with no findings.

[chatgpt-codex-connector]

You have reached your Codex usage limits for code reviews. You can see your limits in the Codex usage dashboard.