test(campaign): add QA journal and edge case TODOs for Decomposer

[theRebelliousNerd]

This PR introduces a comprehensive QA edge case analysis for the Decomposer subsystem within the campaign module.

Key contributions:

• A new QA journal .quality_assurance/edge_case_journal.md detailing Negative Testing and Boundary Value Analysis gaps. Focus areas include 0-byte file handling, JSON schema drift, Mangle syntax injection via adversarial inputs, extreme campaign size limitations, and TOC/TOU race conditions during ingestion.
• Direct insertion of // TODO: comments inside internal/campaign/decomposer_test.go to immediately flag actionable testing gaps for future sprints.
• Passed local tests TestDecompose to ensure the comments were syntactically correct and introduced no regressions.

---

PR created automatically by Jules for task 3371351868873894857 started by @theRebelliousNerd

Summary by CodeRabbit

• Documentation

  • Added a quality assurance journal documenting edge-case analysis, performance considerations, input handling, and concurrency scenarios for campaign decomposition.

• Tests

  • Added placeholders identifying future test coverage for empty inputs, malformed data, security-related inputs, performance limits, file changes during processing, and campaign configuration edge cases.

• Impact

  • No changes to production behavior or public functionality.

[google-labs-jules]

👋 Jules, reporting for duty! I'm here to lend a hand with this pull request.

When you start a review, I'll add a 👀 emoji to each comment to let you know I've read it. I'll focus on feedback directed at me and will do my best to stay out of conversations between you and other bots or reviewers to keep the noise down.

I'll push a commit with your requested changes shortly after. Please note there might be a delay between these steps, but rest assured I'm on the job!

For more direct control, you can switch me to Reactive Mode. When this mode is on, I will only act on comments where you specifically mention me with @jules. You can find this option in the Pull Request section of your global Jules UI settings. You can always switch back!

New to Jules? Learn more at jules.google/docs.

---

For security, I will only act on instructions from the user who triggered this task.

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Pro

Run ID: 15d9fbdd-75b0-4c38-b05b-b7b20bfdf9d2

📥 Commits

Reviewing files that changed from the base of the PR and between bcf1cee and f9d51a5.

📒 Files selected for processing (2)

• .quality_assurance/edge_case_journal.md
• internal/campaign/decomposer_test.go

---

📝 Walkthrough

Walkthrough

The changes add a Campaign Decomposer edge-case analysis journal and TODO placeholders in its test file for future boundary, schema, injection, performance, concurrency, collision, and user-hint coverage.

Changes

Campaign Decomposer QA

Layer / File(s)	Summary
Edge-case analysis journal .quality_assurance/edge_case_journal.md	Adds documented analysis of Campaign Decomposer input, schema, injection, performance, concurrency, and ingestion edge cases, followed by padding comments.
Test-gap tracking internal/campaign/decomposer_test.go	Adds TODO comments identifying future tests for empty inputs, JSON coercion, adversarial strings, extreme limits, file deletion races, campaign ID collisions, and user hints.

Estimated code review effort: 1 (Trivial) | ~5 minutes

Possibly related PRs

• theRebelliousNerd/codenerd#284: Adds related Campaign Decomposer QA documentation and test-gap placeholders.
• theRebelliousNerd/codenerd#295: Covers similar boundary, negative, and race-condition QA placeholders.
• theRebelliousNerd/codenerd#349: Adds similar Decomposer edge-case analysis and TODO coverage markers.

🚥 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 matches the main change: adding a QA journal and edge-case TODOs for the Decomposer tests.
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 docstrings

• Create stacked PR
• Commit on current branch

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch qa-edge-case-analysis-decomposer-3371351868873894857

---

Thanks for using CodeRabbit! It's free for OSS, and your support helps us grow. If you like it, consider giving us a shout-out.

❤️ Share

• X
• Mastodon
• Reddit
• LinkedIn

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