chore: release v0.4.0

[njbrake]

Description

Automated release PR for v0.4.0. Regenerates CHANGELOG.md from Conventional Commits via git-cliff. Merging this PR tags the squash commit v0.4.0 and publishes the GitHub Release, which triggers the Docker image build.

Release notes preview

0.4.0 - 2026-07-24

Bug Fixes

• dashboard: Align input boxes on the tools & guardrails page in #383 by @njbrake (fa68234)
• models: List env-credentialed providers in /v1/models in #388 by @njbrake (340bd4b)
• Surface actionable tools + reasoning_effort provider error in #385 by @njbrake (47c142c)
• dashboard: Make the provider picker open instantly (lazy split) in #382 by @njbrake (e16e49f)
• dashboard: Persist sign-in with an HttpOnly session cookie in #384 by @njbrake (f462b03)
• dashboard: Make the dashboard mobile friendly in #406 by @njbrake (819681d)
• hybrid: Recognize SDK-wrapped timeout/connection errors for fallback in #381 by @tbille (c463603)
• dashboard: CodeRabbit follow-ups on budgets, usage, and tool tests in #404 by @njbrake (6a8a165)
• compose: Bind quickstart postgres to localhost in #413 by @pcornelissen (a5e8058)
• dashboard: Stop table selection clicks from re-rendering every row in #416 by @njbrake (39428aa)
• dashboard: Reopen the request detail inline under the clicked activity row in #417 by @njbrake (4685d03)
• dashboard: Wrap usage stat tiles into a responsive grid on mobile in #418 by @njbrake (50b0cdd)

Features

• dashboard: Code-split route bundles in #373 by @njbrake (b04d3cd)
• pricing: Add reviewable price refresh in #367 by @njbrake (e5bdbb8)
• pricing: Meter cache writes and long context in #379 by @njbrake (7559257)
• files: Stream uploads and downloads instead of buffering in memory in #380 by @champ18ion (cbee20e)
• dashboard: Adopt recharts and retire hand-rolled UsageChart in #386 by @njbrake (de90d8a)
• dashboard: Disable adding providers when OTARI_SECRET_KEY is unset in #391 by @njbrake (661aafc)
• usage: Ingest external usage events for API-equivalent cost tracking in #392 by @njbrake (bf90e94)
• dashboard: Shared table framework with filtering, pagination, selection, and bulk actions in #415 by @njbrake (c8e09b3)

Other

• Update README to remove GitHub repository link in #394 by @njbrake (ac51544)

New Contributors

• @pcornelissen made their first contribution in #413
• @champ18ion made their first contribution in #380

Full Changelog: v0.3.0...v0.4.0

PR Type

• Infrastructure / CI

Relevant issues

Checklist

• I understand the code I am submitting.
• Documentation was updated where necessary.

AI Usage

• No AI was used.

Summary

• Added the v0.4.0 release notes to CHANGELOG.md.
• Documented bug fixes, new features, other updates, and first-time contributors.
• Updated the full changelog comparison link from v0.3.0 to v0.4.0.

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Path: .coderabbit.yaml

Review profile: CHILL

Plan: Pro Plus

Run ID: 95601a60-8213-4bc9-a11e-c017c3e86302

📥 Commits

Reviewing files that changed from the base of the PR and between 50b0cdd and 16a3fdb.

📒 Files selected for processing (1)

• CHANGELOG.md

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Walkthrough

Changes

Release documentation

Layer / File(s)	Summary
0.4.0 changelog entry CHANGELOG.md	Adds categorized notes for Bug Fixes, Features, Other, and New Contributors, plus a v0.3.0...v0.4.0 comparison link.

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

Possibly related PRs

• mozilla-ai/otari#243: Updates CHANGELOG.md with a new release entry at the same file-level scope.

Suggested labels: release

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title uses a valid Conventional Commit prefix and clearly matches this release PR.
Description check	✅ Passed	The description follows the template and includes the main release details, PR type, checklist, and AI usage.
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 release/v0.4.0

✨ Simplify code

• Create PR with simplified code
• Commit simplified code in branch release/v0.4.0

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