feat: launch Vibeflow n8n v0.5.0

.github/DISCUSSION_TEMPLATE/ideas.yml

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+title: Ideas
+labels: [ideas]
+body:
+  - type: textarea
+    id: summary
+    attributes:
+      label: Idea summary
+      description: What would you like to see in Vibeflow n8n?
+    validations:
+      required: true
+  - type: textarea
+    id: problem
+    attributes:
+      label: Problem
+      description: What problem would this solve?
+  - type: textarea
+    id: sketch
+    attributes:
+      label: Proposed approach
+      description: Share a rough implementation idea or usage example.

.github/DISCUSSION_TEMPLATE/show-and-tell.yml

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+title: Show and tell
+labels: [show-and-tell]
+body:
+  - type: textarea
+    id: built
+    attributes:
+      label: What did you build?
+      description: Share the workflow, recipe, or automation you created with Vibeflow n8n.
+    validations:
+      required: true
+  - type: textarea
+    id: notes
+    attributes:
+      label: Notes
+      description: What worked well, what was tricky, and what should improve?

.github/ISSUE_TEMPLATE/bug_report.md

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+---
+name: Bug report
+about: Report a problem in behavior, docs, examples, or packaging
+---
+
+## Summary
+
+Describe the bug.
+
+## Expected behavior
+
+What should have happened?
+
+## Actual behavior
+
+What happened instead?
+
+## Where it appears
+
+- [ ] docs
+- [ ] prompt / skill behavior
+- [ ] examples
+- [ ] client guide
+- [ ] recipes
+
+## Additional context
+
+Add logs, screenshots, or reproduction notes.

.github/ISSUE_TEMPLATE/config.yml

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+blank_issues_enabled: true
+contact_links:
+  - name: Questions and setup help
+    url: https://github.com/OWNER/REPO/discussions
+    about: Use Discussions for setup questions, ideas, and help requests.

.github/ISSUE_TEMPLATE/feature_request.md

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+---
+name: Feature request
+about: Suggest an improvement, new recipe, or new client support idea
+---
+
+## Summary
+
+Describe the improvement.
+
+## Why it matters
+
+What problem does it solve?
+
+## Proposed shape
+
+Describe your preferred implementation.
+
+## Additional context
+
+Links, examples, or related tools.

.github/ISSUE_TEMPLATE/good-first-issue.md

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+---
+name: Good first issue
+about: Template for starter tasks to help new contributors join the project.
+title: "[good first issue] "
+labels: ["good first issue"]
+assignees: []
+---
+
+## Goal
+
+Describe the task in one or two sentences.
+
+## Why it matters
+
+Explain how this improves the project.
+
+## Acceptance criteria
+
+- [ ]
+- [ ]
+- [ ]
+
+## Helpful context
+
+Add links, files, or examples that make this easier to complete.

.github/labels-suggested.md

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+# Suggested labels
+
+Create these labels after launch:
+
+- good first issue
+- help wanted
+- documentation
+- recipes
+- schemas
+- design
+- release
+- ideas
+- show-and-tell
+- client:codex
+- client:claude-code
+- client:opencode
+- client:openclaude

.github/pull_request_template.md

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+## What changed
+
+Describe the main changes in this PR.
+
+## Why
+
+Explain the problem or improvement.
+
+## Checklist
+
+- [ ] Docs updated if behavior changed
+- [ ] Examples updated if needed
+- [ ] Changelog updated if user-visible
+- [ ] No unsafe assumptions introduced

.github/release-checklist.md

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+# Release checklist
+
+- bump `VERSION`
+- update `CHANGELOG.md`
+- verify README links
+- verify placeholder endpoints are clearly marked
+- test one workflow recipe end to end
+- create Git tag
+- publish GitHub release notes
+- announce supported clients and best-effort clients clearly

.github/workflows/markdown-lint.yml

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+name: Markdown Check
+
+on:
+  push:
+  pull_request:
+
+jobs:
+  markdown-check:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: List markdown files
+        run: |
+          find . -type f \( -name "*.md" -o -name "VERSION" \) | sort