chore: bump version to 1.4.0

[HahaSula]

Bump version from 1.3.0 to 1.4.0 to trigger a new image build and GitHub Release via CI.

Minor bump (not patch) because of the volume of new features accumulated since 1.3.0, consistent with how 1.2.0 → 1.3.0 was bumped for the Gitea migration:

• feat: deployment sync — follow a source deployment with eager propagation (feat: deployment sync — follow a source deployment with eager propagation #44)
• feat: alert overview mode with column filters and multi-section workspace (feat: alert overview mode with column filters and multi-section workspace #37)
• feat: add standalone promtool validation scripts (feat: add standalone promtool validation scripts #41)
• feat: add promtool check to preview (feat: add promtool check to preview #43)
• feat: new deployments start empty instead of pre-filled with chart defaults (feat: new deployments start empty instead of pre-filled with chart defaults #25)
• fix: reject folder/init paths rooted at the charts directory (fix: reject folder/init paths rooted at the charts directory #48)
• fix: absorb fetch-level failures in apiFetch instead of throwing (fix: absorb fetch-level failures in apiFetch instead of throwing #49)
• fix: reject path traversal in chart and file parameters (fix: reject path traversal in chart and file parameters #36)
• fix: handle expired OAuth token on git push/pull (fix: handle expired OAuth token on git push/pull (issue #14) #32)

🤖 Generated with Claude Code

Summary by CodeRabbit

• Chores
  • Updated the package version from 1.3.0 to 1.4.0.

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No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Pro Plus

Run ID: d4d42230-64d3-4e40-99be-38f322ae3252

📥 Commits

Reviewing files that changed from the base of the PR and between 5ab5aee and 77032a8.

📒 Files selected for processing (1)

• package.json

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📝 Walkthrough

Walkthrough

The package version field in package.json was updated from 1.3.0 to 1.4.0. No other changes were made.

Changes

Package Version Update

Layer / File(s)	Summary
Bump package version package.json	Version field updated from 1.3.0 to 1.4.0.

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

Possibly related PRs

• null-ptr-exception/ruleMgmt#28: Previous version bump of the same package.json version field, from 1.2.0 to 1.3.0.

🚥 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 clearly and concisely reflects the only change: bumping the package version to 1.4.0.
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 chore/bump-version-1.4.0

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