chore(release): bump to 0.1.5 so main's new API can publish

[thedavidmeister]

main is red: the Package Release run on the #21 merge commit (30564517433) failed at rainix's soldeer-gate — foundry.toml [package].version (0.1.4) is not ahead of the published revision (0.1.4). #21 added public API (zoltuAddress, the derived-address guard) but no bump, and 0.1.4 was published to soldeer on 2026-06-29, so autopublish correctly refused to ship over it. Until a bump lands, the new API reaches no consumer.

Net diff: version = "0.1.4" → "0.1.5", one line. (Two commits — the first accidentally carried a stale re-add of the two mocks #21 had just moved out of the mirror tree; the second removes them again. Net tree change vs main is foundry.toml only, verifiable with the diffstat.)

QA

• Discriminating tests: the rainix soldeer-gate itself — red on main at 0.1.4 (run 30564517433, the failure this fixes), and it re-runs on this PR's merge push where 0.1.5 > 0.1.4 satisfies it. No repo test reads the version, so the gate is the only oracle-backed check and it is the failing one.
• Mutations applied: n/a — a one-line version literal in config; the only meaningful corruption (not bumping) is exactly the red state on main that this PR exists to clear.
• Oracle: the soldeer registry's published revisions (rain-deploy latest = 0.1.4, published 2026-06-29), independent of this repo.
• Category check: the failure is "version not ahead of published"; covered by the bump. Deliberately NOT here: making the gate run on PRs rather than only post-merge (it caught this after merge, which is a round trip late) — that is a rainix reusable change and belongs there, not in a consumer.

Summary by CodeRabbit

• Chores
  • Updated the package version to 0.1.5.

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Organization UI

Review profile: ASSERTIVE

Plan: Pro Plus

Run ID: 8650c4ac-f037-478c-9155-841d4e3d7049

📥 Commits

Reviewing files that changed from the base of the PR and between f5ee2e5 and 54a3e98.

📒 Files selected for processing (1)

• foundry.toml

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Walkthrough

The package version in foundry.toml was incremented from 0.1.4 to 0.1.5.

Changes

Package release metadata

Layer / File(s)	Summary
Update package version foundry.toml	The [package] version was changed from 0.1.4 to 0.1.5.

Estimated code review effort: 1 (Trivial) | ~2 minutes

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title accurately reflects the version bump to 0.1.5 and the release intent behind it.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
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.

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch 2026-07-30-bump-0-1-5

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[thedavidmeister]

Reviewed 54a3e98467bd0322953542194170e0561c02c53c: ready — one-line bump clearing the soldeer-gate red on main (0.1.4 not ahead of published 0.1.4); net diff verified foundry.toml-only after the stale-staged mishap was removed in the second commit.