[SYMPP-HOTFIX] Avoid duplicate projection during package creation

[JJLiebig]

Context

Daedalus package creation exceeded the 15-second database transaction deadline while redacting a second full dashboard projection for its 611-package WorkRequest.

TL;DR

Reuse the loaded dashboard detail and refresh only the product tree after recording its revision.

Summary

• Remove the duplicate full projection inside package, group, and dependency mutation transactions.
• Preserve atomic revision recording and return the freshly recorded revision.
• Copied-ledger measurement: 5.19s before, 2.82s after; the installed runtime has not been changed.

Alternatives

• Raising the timeout would retain the duplicated work; reuse removes its cause without changing the deadline.

Test Plan

• 40 focused tests across slicing, multi-repo scope, revision idempotency, product trees, groups, and dependencies.
• Regression fails on the old implementation and passes with the fix; returned revision matches storage.
• Formatting, specs.check, and strict Credo pass.
• Copied 611-package ledger preserves the product tree while refreshing the revision.
• Fast Review Suite: cleanup pass and both correctness reviewers clean (rvw_7df591a2).
• Full-suite and release gates omitted: this change is confined to projection reuse; relevant shared callers are covered.

[coderabbitai]

Important

• 🔍 Trigger review

This repository does not receive automatic reviews because it has fewer than 10 stars.

⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Advanced

Run ID: 1a2c17e5-7fad-4d16-993c-3f98458edffd

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