Add full shell, replaceable Omics adapter and bilingual interaction

Implement approved specification #32 and tickets #33-#37. Keep host authentication server-verified and pin session interaction language. Compile scoped base selectors for browser compatibility and retain full gutters during CSS pruning.

harness/.pi/extensions/gate/__tests__/archive_repair.test.js

@@ -1,6 +1,7 @@
 const test = require("node:test");
 const assert = require("node:assert/strict");
 const { installRepairGate } = require("../memory/repair.js");
+const { gateText } = require("../core/locale.js");
 
 function gate({ answers, fail = false, resume = false }) {
     let tool;
@@ -8,6 +9,8 @@ function gate({ answers, fail = false, resume = false }) {
     const repair = { repair_id: "receipt", choice: null, status: "proposed", can_apply: true,
         saved: false, indexed: false, options: [{ id: "fix", content: { detail: "Correction" } }] };
     installRepairGate({ registerTool: def => { tool = def; } }, {
+        languageFor: () => "en",
+        gateText,
         workflow: { activate() {}, phase: () => ({ id: "F4" }) },
         memory: { execute: (_ctx, args) => {
             calls.push(args);