Fix tagline: "just a binary" → "just your terminal"

Fix CI lint: upgrade golangci-lint v2.1.6 → v2.11.4

Fix govulncheck: upgrade Go 1.23 → 1.25+ (12 stdlib CVEs)

Fix: re-ref stdin in c2c-shim.js for skill-only plugin survival

Re-enable errcheck + gosec, fix stdin hang in shim tests

Fix CI lint: golangci-lint v2 config format + code fixes

Fix CI: golangci-lint v2 requires action v7, not v6

Fix CI: use golangci-lint-action, add shim test timeout

Grill report fixes: 22/25 items, coverage 74.5% → 80.4%

Rewrite CI + update docs for connect -f and coverage improvements

Change connect default to background, -f for foreground

Add MCP tests: toolSchemaToMCPTool + registerDynamicTools (69% → 79.6%)

Add UDS tests: socket fallback, ping/pong readiness, timeout

Add sandbox tests + fix macOS 15 profile (TDD: 0% → 57.9%)

Fix 3 critical issues from grill report (TDD)