Replace every httptest.NewRequest call with
httptest.NewRequestWithContext using the test's t.Context(). Thread
t *testing.T through the createSetupFormRequest and
createLoginFormRequest helpers so they can supply a context.
make lint under golangci-lint 2.12.2 drops from 94 findings to 47
(remaining: 23 gosec, 24 goconst, tracked in #176/#177/#178). make
test and make fmt-check pass unchanged.
Closes#175
Add renderTemplate helper method on Handlers that renders templates to a
bytes.Buffer first, then writes to the ResponseWriter only on success.
This prevents partial/corrupt HTML when template execution fails partway
through.
Applied to all template rendering call sites in:
- setup.go (HandleSetupGET, renderSetupError)
- auth.go (HandleLoginGET, HandleLoginPOST error paths)
- dashboard.go (HandleDashboard)
- app.go (HandleAppNew, HandleAppCreate, HandleAppDetail, HandleAppEdit,
HandleAppUpdate, HandleAppDeployments)
