Apply batch 4 lint decisions and deno fmt settings

.agents/memory/lint-config.md

@@ -79,5 +79,24 @@ overrides: projectOverrides,
   `project/prefer-ascii` in `projectOverrides`: posted Gitea text shows emoji
   verdict marks and a middle dot.
 
+## Rule decisions (2026-10-20, all repos)
+
+- `unicorn/number-literal-case` is off: Oxfmt lowercases hex digits back.
+- `typescript/consistent-return` is off too: it misfires on complete
+  switches, like `consistent-return`.
+- On with defaults, no offs: `prefer-object-spread`, `unicorn/prefer-spread`,
+  `unicorn/no-useless-spread`, `typescript/no-misused-spread`, `no-plusplus`
+  (`x += 1`), `unicorn/no-array-method-this-argument`,
+  `typescript/method-signature-style` ("property"),
+  `typescript/unified-signatures`.
+- `unicorn/import-style` uses its default: `import nodePath from "node:path"`
+  and `nodePath.join(...)` (`nodePath`, since `path` is a common variable).
+- `no-template-curly-in-string` is on; only `tests/workflow.test.ts`, which
+  checks literal Gitea `${{ }}` expressions, is exempt in `projectOverrides`.
+- Rule defaults are preferred over option tweaks unless a tweak is needed.
+- `fmt` matches `deno fmt`: `printWidth: 80`, `quoteProps: "preserve"`,
+  `embeddedLanguageFormatting: "off"`. `max-lines-per-function` is 124 after
+  the narrower width.
+
 A new category hit is fixed in the code; an off or exception is added only
 for a real collision or churn, with its reason. Rules: [[project-lint-plugin]].