Reduce friction for bug reporting (#14911)

- Update error message to present troubleshooting and issue filing equally
- Remove dead GitHub Discussions link from troubleshooting page
- Simplify bug report template from 6 sections to 3
- Add config.yml to show troubleshooting link in issue chooser
- Lead CONTRIBUTING.md with "We welcome bug reports!"

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-authored-by: Claude <noreply@anthropic.com>

.github/ISSUE_TEMPLATE/bug_report.md

@@ -1,32 +1,15 @@
 ---
 name: Bug report
-about: Create a report to help us improve
-
+about: Report a problem with Algo
 ---
 
-**Describe the bug**
+**What happened?**
 
-A clear and concise description of what the bug is.
 
-**To Reproduce**
+**Environment** (cloud provider, OS, WireGuard or IPsec)
 
-Steps to reproduce the behavior:
-1. Do this..
-2. Do that..
-3. ..
-
-**Expected behavior**
-
-A clear and concise description of what you expected to happen.
-
-**Additional context**
-
-Add any other context about the problem here.
-
-**Full log**
-
-<!--- Put here the FULL LOG after you run the ./algo script below -->
 
+**Output**
 ```
-PUT THE OUTPUT HERE
+Paste any error messages or relevant output here
 ```

.github/ISSUE_TEMPLATE/config.yml

@@ -0,0 +1,6 @@
+---
+blank_issues_enabled: true
+contact_links:
+  - name: Troubleshooting Guide
+    url: https://trailofbits.github.io/algo/troubleshooting.html
+    about: Check common issues and solutions before filing