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/@vincjo/datatables/package.json

@@ -0,0 +1,86 @@
+{
+    "name": "@vincjo/datatables",
+    "version": "2.8.1",
+    "keywords": [
+        "svelte sveltejs table tables datatable datatables filter headless sort selection lazy-loading"
+    ],
+    "description": "A powerful toolkit for building datatable components",
+    "repository": {
+        "type": "git",
+        "url": "git+https://github.com/vincjo/datatables.git"
+    },
+    "author": "vincjo",
+    "contributors": [
+        "bn-l",
+        "jst-r"
+    ],
+    "license": "MIT",
+    "bugs": {
+        "url": "https://github.com/vincjo/datatables/issues"
+    },
+    "homepage": "https://vincjo.fr/datatables",
+    "scripts": {
+        "dev": "vite dev",
+        "build": "vite build",
+        "preview": "vite preview",
+        "package": "svelte-kit sync && svelte-package",
+        "publish:runes": "svelte-kit sync && svelte-package && npm publish",
+        "check": "svelte-kit sync && svelte-check --tsconfig ./tsconfig.json",
+        "check:watch": "svelte-kit sync && svelte-check --tsconfig ./tsconfig.json --watch",
+        "format": "prettier --plugin-search-dir . --write .",
+        "deploy": "pm2 deploy ecosystem.config.cjs production",
+        "deploy:setup": "pm2 deploy ecosystem.config.cjs production setup"
+    },
+    "devDependencies": {
+        "@rollup/plugin-replace": "^6.0.3",
+        "@sveltejs/adapter-node": "^5.5.4",
+        "@sveltejs/kit": "^2.63.0",
+        "@sveltejs/package": "=2.3.7",
+        "@sveltejs/vite-plugin-svelte": "^7.1.2",
+        "@types/node": "^25.9.1",
+        "dotenv": "^17.4.2",
+        "gros": "^1.2.3",
+        "mdsvex": "^0.12.7",
+        "prism-svelte": "^0.5.0",
+        "prismjs": "^1.30.0",
+        "svelte": "5.56.1",
+        "svelte-check": "^4.6.0",
+        "svelte-dnd-action": "^0.9.69",
+        "svelte-preprocess": "^6.0.5",
+        "tslib": "^2.8.1",
+        "typescript": "^6.0.3",
+        "vite": "^8.0.16"
+    },
+    "peerDependencies": {
+        "svelte": "^5.56.1"
+    },
+    "type": "module",
+    "files": [
+        "dist"
+    ],
+    "svelte": "./dist/index.js",
+    "types": "./dist/index.d.ts",
+    "exports": {
+        ".": {
+            "types": "./dist/index.d.ts",
+            "css": "./dist/*.css",
+            "svelte": "./dist/index.js",
+            "default": "./dist/index.js"
+        },
+        "./server": {
+            "types": "./dist/server/index.d.ts",
+            "svelte": "./dist/server/index.js",
+            "default": "./dist/server/index.js"
+        },
+        "./legacy": {
+            "types": "./dist/legacy/index.d.ts",
+            "svelte": "./dist/legacy/index.js",
+            "default": "./dist/legacy/index.js"
+        },
+        "./legacy/remote": {
+            "types": "./dist/legacy/remote/index.d.ts",
+            "svelte": "./dist/legacy/remote/index.js",
+            "default": "./dist/legacy/remote/index.js"
+        }
+    }
+}