Merge decision inbox: infra details, auto-close directive, test isolation, clipboard helper

- Consolidated 4 decisions from .squad/decisions/inbox/ into decisions.md
- Removed duplicate entries (consolidated old versions)
- Deleted inbox files after merge
- All decisions now in single canonical location

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

.squad/decisions.md

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+# Squad Decisions
+
+## Active Decisions
+
+### 2026-03-27T02:18:00Z: Infrastructure connection details
+**By:** Squad Coordinator (capturing session discoveries)
+**What:** Production VM connection details established this session:
+- **VM Name:** meshcore-vm
+- **Resource Group:** MESHCORE-WEST-RG
+- **Region:** westus2
+- **Size:** Standard_D2as_v5 (Linux)
+- **Public IP:** <VM_HOST>
+- **SSH User:** deploy
+- **SSH Command:** `ssh deploy@<VM_HOST>`
+- **Azure CLI:** v2.84.0 (upgraded from 2.11.1 this session — stale .pyc files cleared)
+- **CI Runner:** self-hosted on this same VM ("meshcore-vm")
+- **App path:** TBD (Hudson investigating via SSH)
+- **DB path:** TBD (Hudson investigating via SSH)
+**Why:** Team needs a single reference for prod access. Hudson, Hicks, and any future agent doing prod debugging needs these details.
+
+### 2026-03-27T00:06:00Z: User directive — auto-close issues with commit messages
+**By:** User (via Copilot)
+**What:** Always use "Fixes #N" or "Closes #N" in commit messages so GitHub auto-closes issues on push. Don't just reference issue numbers in description text.
+**Why:** User request — captured for team memory. Previous commit listed issues but didn't trigger auto-close.
+
+### 2026-03-26T19:10:00Z: User directive — test data isolation
+**By:** User (via Copilot)
+**What:** Seeded test data for E2E tests must be isolated — never pollute production or deployed containers. Use a separate test-only DB or inject via test harness. Seed before tests, tear down after. No seed scripts in Docker image.
+**Why:** User request — captured for team memory.
+
+### 2026-03-26T19:00:00Z: Shared clipboard helper in roles.js
+**Author:** Newt  
+**What:** Added `window.copyToClipboard(text, onSuccess, onFail)` to `roles.js` as the single clipboard implementation for all frontend modules.
+**Rationale:** Three separate files had their own clipboard logic (nodes.js, packets.js, customize.js) — one had no fallback, one used `prompt()`, one had a proper fallback. DRY principle: one implementation, used everywhere. The helper tries `navigator.clipboard.writeText()` first, falls back to hidden textarea + `document.execCommand('copy')` for Firefox and older browsers.
+**Impact:** Any future copy-to-clipboard needs should use `window.copyToClipboard()` instead of calling the Clipboard API directly.
+
+## Governance
+
+- All meaningful changes require team consensus
+- Document architectural decisions here
+- Keep history focused on work, decisions focused on direction