Docs: issue/PR templates, CLAUDE workflow notes, PR template filename (#83)

* chore: uppercase PR template (summary, problem, solution)

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* chore: uppercase PR template (testing, impact)

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* chore: uppercase PR template (breaking changes, related)

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* chore: intermediate rename for pull request template path

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* chore: use uppercase PULL_REQUEST_TEMPLATE.md

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* docs: point agent docs at PULL_REQUEST_TEMPLATE.md

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* chore: update pull request and feature issue templates for clarity and consistency

- Standardized section headings to title case for uniformity.
- Enhanced descriptions for each section to improve guidance for contributors.
- Introduced a new feature issue template to streamline feature proposals and documentation requirements.

* docs: enhance issue and pull request templates for better guidance

- Added a new bug issue template to standardize bug reporting.
- Updated the feature issue template to clarify the problem and solution sections.
- Revised the pull request template to include a submission checklist for testing and documentation requirements.

* chore: comment out E2E macOS workflow steps in test.yml

- Temporarily disabled the E2E (macOS / Appium) job in the GitHub Actions workflow by commenting out all related steps for future reference.

.github/ISSUE_TEMPLATE/bug.md

@@ -0,0 +1,29 @@
+---
+name: Bug
+description: Report incorrect behavior, regressions, or broken flows
+title: "[Bug] "
+labels:
+  - bug
+---
+
+## Summary
+
+What failed, in one or two sentences (user-visible symptom or test failure).
+
+## Problem
+
+What happened vs what you expected, impact, and **steps to reproduce** (ordered, minimal). Include **version / platform** (app version, OS, desktop vs dev) if known.
+
+## Solution (optional)
+
+Suspected cause, workaround, or proposed fix. Skip if unknown.
+
+## Acceptance criteria
+
+- [ ] **Repro gone** — Bug no longer reproduces on the stated environment (or root cause documented if intentional).
+- [ ] **Regression safety** — Unit, integration, or E2E coverage added or updated if this should not come back.
+- [ ] **…** — Other verify-before-close items.
+
+## Related
+
+Links to issues, PRs, logs, or prior discussion.