Add issue templates and disable blank issues

Four templates: bug report (with environment table and platform-vs-plugin
gate), feature request (with problem statement and core-appropriateness
question), IDE/platform support request, and a config that disables
blank issues and redirects questions to Discord.

.github/ISSUE_TEMPLATE/bug_report.md

@@ -0,0 +1,52 @@
+---
+name: Bug Report
+about: Something isn't working as expected
+labels: bug
+---
+
+<!--
+BEFORE FILING: Search open AND closed issues. The Windows SessionStart
+hook alone has been reported 29 times. If your issue already exists,
+add a comment or reaction to the existing one instead.
+-->
+
+- [ ] I searched existing issues and this is not a duplicate
+
+## Environment
+
+| Field | Value |
+|-------|-------|
+| Superpowers version | |
+| Harness (Claude Code, Cursor, etc.) | |
+| Harness version | |
+| Model | |
+| OS + shell | |
+
+## Is this a Superpowers issue or a platform issue?
+<!-- Superpowers is a plugin. Some reported "bugs" are actually issues
+     in the underlying platform or model. If you're not sure, try
+     reproducing without Superpowers installed.
+
+     If the problem persists without Superpowers, file the issue with
+     your platform instead. -->
+
+- [ ] I confirmed this issue does not occur without Superpowers installed
+
+## What happened?
+<!-- Be specific. "It doesn't work" is not a bug report. -->
+
+## Steps to reproduce
+1.
+2.
+3.
+
+## Expected behavior
+<!-- What should have happened? -->
+
+## Actual behavior
+<!-- What happened instead? -->
+
+## Debug log or conversation transcript
+<!-- A debug log or conversation transcript showing the issue is the
+     single most helpful thing you can include. Without one, we're
+     guessing. Screenshots of error output are also useful. -->

.github/ISSUE_TEMPLATE/config.yml

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+blank_issues_enabled: false
+contact_links:
+  - name: Questions & Help
+    url: https://discord.gg/Jd8Vphy9jq
+    about: For usage questions, troubleshooting help, and general discussion, please visit our Discord instead of opening an issue.

.github/ISSUE_TEMPLATE/feature_request.md

@@ -0,0 +1,34 @@
+---
+name: Feature Request
+about: Propose a change or addition to Superpowers
+labels: enhancement
+---
+
+<!--
+BEFORE FILING: Search open AND closed issues. Many features have been
+requested before — some were implemented differently, some are in
+progress, and some were intentionally declined.
+-->
+
+- [ ] I searched existing issues and this has not been proposed before
+
+## What problem does this solve?
+<!-- Describe the problem from your own experience. What were you doing,
+     what went wrong or was missing, and why did it matter?
+
+     "It would be cool if..." is not a problem statement. -->
+
+## Proposed solution
+<!-- What specifically do you want to happen? Be concrete. -->
+
+## What alternatives did you consider?
+<!-- What other approaches could solve the same problem? Why is your
+     proposal better? -->
+
+## Is this appropriate for core Superpowers?
+<!-- Would this benefit someone working on a completely different kind
+     of project? If this is specific to your domain, workflow, or a
+     third-party tool, it may belong as its own plugin instead. -->
+
+## Context
+<!-- Optional: version info, harness, model, workflow where you hit this. -->

.github/ISSUE_TEMPLATE/platform_support.md

@@ -0,0 +1,23 @@
+---
+name: IDE / Platform Support Request
+about: Request support for a new IDE, editor, or AI coding tool
+labels: platform-support
+---
+
+<!--
+BEFORE FILING: Search existing issues — your IDE may already be
+requested or discussed.
+-->
+
+- [ ] I searched existing issues for this IDE/platform
+
+## Which IDE or platform?
+<!-- Name and link -->
+
+## Does this tool have a plugin or extension system?
+<!-- If yes, link to the docs. If no, explain how third-party
+     integrations typically work with this tool. -->
+
+## Have you tried manual installation?
+<!-- Many tools work with Superpowers through manual setup even without
+     official support. Did you try? What happened? -->