feat: tag alloy scrap with the base metal it consumed

[XxFran10xX]

Summary

• A failed alloy forge now tags the scrap it drops with the base ingredient id (ac_scrap_base PDC key).
• New ScrapProvenance helper (applyTo / readBaseId) so Recycler can turn scrap back into part of that base metal.

Scrap forged before this change has no tag, so it stays unrecyclable. Scrap from different base metals no longer stacks together.

Companion Recycler PR follows once this is released (it pins advancedcrafting.version).

Test plan

• mvn clean verify locally
• Dev: force a scrap forge, check the scrap carries the tag and recycles in Recycler

🤖 Generated with Claude Code

Summary by CodeRabbit

• New Features
  • Scrap dropped by the Alloy Forger now retains information about its base ingredient when one is available, making the ingredient identifiable from the scrap later. Scrap produced without a base ingredient remains unchanged, and ingredient identification is consistent across different server language settings.

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ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Organization UI

Review profile: CHILL

Plan: Advanced

Run ID: 02b625ea-577a-4626-801a-4de1a98c5084

📥 Commits

Reviewing files that changed from the base of the PR and between 95fa986 and ddd192c.

📒 Files selected for processing (1)

• src/main/java/net/tfminecraft/advancedcrafting/objects/data/ScrapProvenance.java

🚧 Files skipped from review as they are similar to previous changes (1)

• src/main/java/net/tfminecraft/advancedcrafting/objects/data/ScrapProvenance.java

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📝 Walkthrough

Walkthrough

When the station has a base item, AlloyForger applies its ID as provenance to the scrap template. The provenance helper stores the ID using a plugin namespaced key and lowercases it with Locale.ROOT.

Changes

Scrap provenance

Layer / File(s)	Summary
Store and apply scrap provenance src/main/java/net/tfminecraft/advancedcrafting/utils/PDCKeys.java, src/main/java/net/tfminecraft/advancedcrafting/objects/data/ScrapProvenance.java, src/main/java/net/tfminecraft/advancedcrafting/objects/alloys/AlloyForger.java	Adds the ac_scrap_base key. ScrapProvenance.applyTo lowercases the base ID with Locale.ROOT before storing it. When the station has a base item, AlloyForger applies its ID to the scrap template.

Priority: ⬇️ Low

Estimated code review effort: 2 (Simple) | ~10 minutes

Change: Feature

Merge Risk: ⚪ Minimal · up to ddd19

No identified issue blocks merging. Forging and recycling remain to be checked in a development test.

Security Architecture Review

Security architecture risk: 🔵 Low · up to 95fa9

Forging now labels scrap with its base ingredient, but the available code does not show that the label grants access to materials or bypasses forging permissions. The planned recycling integration is not available to verify how it will use the label.

Retained concerns
No architecture-level concerns identified.

Security review details

Security Blast Radius

• inferred — The established new exposure is provenance metadata on scrap produced by permitted station forging, not a demonstrated new privileged operation. How far that label will propagate through recycling is unknown without the later consumer.

Trust Boundaries and Controls

• observed — Ingredient permissions are enforced before forging, whereas readBaseId is only a metadata accessor. Whether a later consumer treats its result as authoritative, and what controls it applies, cannot be established here.

Resilience and Maintainability Implications

• inferred — An untagged legacy item and an item for which the writer skipped provenance both read as null. Any future recovery or recycling policy must account for that indistinguishable state; its behavior is not present in this PR.

Hardening Proposals

• proposed — Before a Recycler uses the tag to award material, verify the scrap type and resolve the ID against allowed base ingredients under the appropriate player permissions; do not treat the string alone as proof of entitlement.

🚥 Pre-merge checks | ✅ 4 | ❌ 1

❌ Failed checks (1 warning)

Check name	Status	Explanation	Resolution
Docstring Coverage	⚠️ Warning	Docstring coverage is 14.29% which is insufficient. The required threshold is 80.00%. Docstring coverage is scoped to functions touched by this diff. Analyzed 7 functions across 3 files.	Write docstrings for the functions missing them to satisfy the coverage threshold.

✅ Passed checks (4 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title clearly and concisely describes the main change: tagging alloy scrap with the consumed base metal.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

• Fix all pre-merge checks with AI

✨ Finishing Touches 💡 1

📝 Generate docstrings 💡

• Commit to this branch
• Create a new PR

🧪 Generate unit tests (beta)

• Commit to this branch
• Create a new PR

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_{A rabbit marked the scrap with care,
A base item's trace is written there.
Root-locale letters settle neat,
The forge drops scrap, provenance complete.
The rabbit hops beside the flame,
And leaves each scrap with its base name.}

_{Comment @coderabbitai help to get the list of available commands.}

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Actionable comments posted: 1

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• 🪄 Fix CodeRabbit comments on this PR

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Inline comments:
In
@src/main/java/net/tfminecraft/advancedcrafting/objects/data/ScrapProvenance.java:
- Line 24: Update the baseId normalization in ScrapProvenance.applyTo to use
locale-independent lowercasing with Locale.ROOT, adding the necessary import so
stored scrap identifiers remain stable across server locales.

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ℹ️ Review info

⚙️ Run configuration

Configuration used: Organization UI

Review profile: CHILL

Plan: Advanced

Run ID: 27ceb760-b0e1-46da-a623-ac9116c5478c

📥 Commits

Reviewing files that changed from the base of the PR and between 9bf45a7 and 95fa986.

📒 Files selected for processing (3)

• src/main/java/net/tfminecraft/advancedcrafting/objects/alloys/AlloyForger.java
• src/main/java/net/tfminecraft/advancedcrafting/objects/data/ScrapProvenance.java
• src/main/java/net/tfminecraft/advancedcrafting/utils/PDCKeys.java

Included review availability: This review used your included allowance. Your plan provides up to 10 included reviews per hour; 9 remain after this review.