feat: Phase 1 — extract the client (web SPA + desktop) to dtoro/oikos-web

Problem: the hexagonal refactor churns the backend tree for nine more
phases; the UI delivery stack (web/ SPA, cmd/desktop Wails wrapper,
compose/web image) must move to its own repo first so doc/layout
rewrites land once on a backend-only tree.

Change:
- New repo git.hubris.network/dtoro/oikos-web (v0.33.0): web/, desktop/
  (updateURL repointed to oikos-web releases), compose/, own CI (web +
  desktop jobs), own deploy script (CI-green gate, TOCTOU guard,
  version-tagged images, prune-to-3), own webhook receiver on :9798 +
  launchd unit, own compose project publishing the same 8091:80.
- Cutover executed on mac-mini in order: oikos stack's web service
  stopped+removed, oikos-web project brought up on 8091; outer Caddy
  untouched (targets the published port) — serving + Authentik flow +
  /wails 404 quirk verified post-cutover.
- Stripped from oikos: web/, cmd/desktop/, compose/web/, desktop CI
  workflow, ci.yml web job, Makefile ui/desktop/desktop-package/install
  targets, the compose web service, oikos-web from deploy.sh's fallback
  prune list; wails + go-keyring dropped from go.mod, vendor synced.
- README / CONTRIBUTING / AGENTS.md / .agents dev+operations docs now
  point at the new repo; mbse + mascot design docs carry a path note.

Risk: production SPA serving depends on the new pipeline now; rollback
is versioned-image re-up of the old web service from a pre-split
checkout (port 8091). Desktop builds installed before the split still
check dtoro/oikos releases — one manual reinstall, noted in the
oikos-web release notes.

Verification: go vet, make test (race), make generate-check, golangci
(no new findings; baseline down 400→365); post-cutover curls —
localhost:8091 200, /wails/runtime.js 404, outer Caddy 302 Authentik.

web/node_modules/svelte-eslint-parser/lib/context/fix-locations.js

@@ -0,0 +1,65 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.fixLocations = fixLocations;
+const traverse_1 = require("../traverse");
+/** Fix locations */
+function fixLocations(node, tokens, comments, offset, visitorKeys, ctx) {
+    if (offset === 0) {
+        return;
+    }
+    const traversed = new Set();
+    (0, traverse_1.traverseNodes)(node, {
+        visitorKeys,
+        enterNode: (n) => {
+            if (traversed.has(n)) {
+                return;
+            }
+            traversed.add(n);
+            if (traversed.has(n.range)) {
+                if (!traversed.has(n.loc)) {
+                    // However, `Node#loc` may not be shared.
+                    const locs = ctx.getConvertLocation({
+                        start: n.range[0],
+                        end: n.range[1],
+                    });
+                    applyLocs(n, locs);
+                    traversed.add(n.loc);
+                }
+            }
+            else {
+                const start = n.range[0] + offset;
+                const end = n.range[1] + offset;
+                const locs = ctx.getConvertLocation({ start, end });
+                applyLocs(n, locs);
+                traversed.add(n.range);
+                traversed.add(n.loc);
+            }
+        },
+        leaveNode: Function.prototype,
+    });
+    for (const t of tokens) {
+        const start = t.range[0] + offset;
+        const end = t.range[1] + offset;
+        const locs = ctx.getConvertLocation({ start, end });
+        applyLocs(t, locs);
+    }
+    for (const t of comments) {
+        const start = t.range[0] + offset;
+        const end = t.range[1] + offset;
+        const locs = ctx.getConvertLocation({ start, end });
+        applyLocs(t, locs);
+    }
+}
+/**
+ * applyLocs
+ */
+function applyLocs(target, locs) {
+    target.loc = locs.loc;
+    target.range = locs.range;
+    if (typeof target.start === "number") {
+        delete target.start;
+    }
+    if (typeof target.end === "number") {
+        delete target.end;
+    }
+}