feat: initial commit — unarr CLI

Search, inspect, stream, and download torrents from the terminal.
Replaces the entire *arr stack with a single binary.

.github/ISSUE_TEMPLATE/bug_report.md

@@ -0,0 +1,33 @@
+---
+name: Bug Report
+about: Report a bug or unexpected behavior
+title: ""
+labels: bug
+assignees: ""
+---
+
+## Description
+
+<!-- A clear description of the bug. -->
+
+## Steps to Reproduce
+
+1.
+2.
+3.
+
+## Expected Behavior
+
+<!-- What should happen. -->
+
+## Actual Behavior
+
+<!-- What actually happens. Include error messages or output. -->
+
+## Environment
+
+- **OS**: (e.g., Ubuntu 24.04, macOS 15, Windows 11)
+- **Architecture**: (e.g., amd64, arm64)
+- **unarr version**: (`unarr version`)
+- **Go version** (if built from source): (`go version`)
+- **Install method**: (Homebrew / GitHub Release / go install / Docker)