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/@internationalized/date/package.json

@@ -0,0 +1,50 @@
+{
+  "name": "@internationalized/date",
+  "version": "3.12.3",
+  "description": "Internationalized calendar, date, and time manipulation utilities",
+  "license": "Apache-2.0",
+  "repository": {
+    "type": "git",
+    "url": "https://github.com/adobe/react-spectrum/tree/main/packages/@internationalized/date"
+  },
+  "source": "src/index.ts",
+  "files": [
+    "dist",
+    "src"
+  ],
+  "sideEffects": false,
+  "main": "dist/index.cjs",
+  "module": "dist/index.js",
+  "types": "./dist/types/src/index.d.ts",
+  "exports": {
+    "source": "./src/index.ts",
+    "types": "./dist/types/src/index.d.ts",
+    "import": "./dist/index.mjs",
+    "require": "./dist/index.cjs"
+  },
+  "publishConfig": {
+    "access": "public"
+  },
+  "dependencies": {
+    "@swc/helpers": "^0.5.0"
+  },
+  "import": "dist/index.mjs",
+  "targets": {
+    "types": false,
+    "module": {
+      "engines": {
+        "browsers": [
+          "chrome >= 79",
+          "firefox >= 85",
+          "safari >= 13"
+        ]
+      }
+    },
+    "import": {
+      "isLibrary": true,
+      "outputFormat": "esmodule",
+      "includeNodeModules": false
+    }
+  },
+  "gitHead": "5ecb3333001313e83898cd07644227897e3bae1f"
+}