docs: issues on the GitHub mirror, with bug and feature forms

The README says pull requests aren't taken and points to issues on the
GitHub mirror. Issue forms for bug reports and feature requests set the
bug and enhancement labels; blank issues are off.

Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>

.github/ISSUE_TEMPLATE/bug.yml

@@ -0,0 +1,46 @@
+name: Bug report
+description: Something in lazysecrets doesn't work as it should.
+labels: [bug]
+body:
+  - type: markdown
+    attributes:
+      value: |
+        Thanks for reporting! Please leave out secret values, tokens and anything else private: names of vaults and secrets are enough.
+  - type: textarea
+    id: what
+    attributes:
+      label: What happened
+      description: What you did, what you expected, and what happened instead.
+    validations:
+      required: true
+  - type: textarea
+    id: steps
+    attributes:
+      label: Steps to reproduce
+      description: If you can, try `lazysecrets --demo` first.
+      placeholder: |
+        1. lazysecrets --demo
+        2. ctrl+s, type …
+  - type: input
+    id: version
+    attributes:
+      label: Version
+      description: The status pane shows it, e.g. `v0.1.0`.
+    validations:
+      required: true
+  - type: dropdown
+    id: source
+    attributes:
+      label: Where
+      multiple: true
+      options:
+        - Azure Key Vault
+        - Databricks
+        - SOPS or .env files
+        - Links
+        - Everywhere / not sure
+  - type: input
+    id: platform
+    attributes:
+      label: OS and terminal
+      placeholder: macOS 26, kitty + tmux