feat: issue templates — bug report, new skill proposal

Author: snese

.github/ISSUE_TEMPLATE/bug.yml

@@ -0,0 +1,40 @@
+---
+name: Bug Report
+description: A skill isn't working as expected
+labels: [bug]
+body:
+  - type: dropdown
+    id: skill
+    attributes:
+      label: Which skill?
+      options:
+        - plan-product
+        - plan-eng
+        - code-review
+        - ship
+        - qa
+        - retro
+        - setup script
+    validations:
+      required: true
+  - type: textarea
+    id: what-happened
+    attributes:
+      label: What happened?
+      placeholder: Describe the issue
+    validations:
+      required: true
+  - type: textarea
+    id: expected
+    attributes:
+      label: What did you expect?
+    validations:
+      required: true
+  - type: textarea
+    id: environment
+    attributes:
+      label: Environment
+      value: |
+        - OS:
+        - kiro-cli version:
+        - kstack version:

.github/ISSUE_TEMPLATE/config.yml

@@ -0,0 +1 @@
+blank_issues_enabled: true

.github/ISSUE_TEMPLATE/new-skill.yml

@@ -0,0 +1,23 @@
+---
+name: New Skill Proposal
+description: Propose a new cognitive mode skill
+labels: [enhancement, new-skill]
+body:
+  - type: textarea
+    id: cognitive-mode
+    attributes:
+      label: What cognitive mode does this skill represent?
+      placeholder: "e.g. Security Auditor — think like an attacker reviewing the codebase"
+    validations:
+      required: true
+  - type: textarea
+    id: when-to-use
+    attributes:
+      label: When would you use this instead of existing skills?
+    validations:
+      required: true
+  - type: textarea
+    id: example
+    attributes:
+      label: Example interaction
+      placeholder: "User says X, agent does Y"