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/@jridgewell/resolve-uri/README.md

@@ -0,0 +1,40 @@
+# @jridgewell/resolve-uri
+
+> Resolve a URI relative to an optional base URI
+
+Resolve any combination of absolute URIs, protocol-realtive URIs, absolute paths, or relative paths.
+
+## Installation
+
+```sh
+npm install @jridgewell/resolve-uri
+```
+
+## Usage
+
+```typescript
+function resolve(input: string, base?: string): string;
+```
+
+```js
+import resolve from '@jridgewell/resolve-uri';
+
+resolve('foo', 'https://example.com'); // => 'https://example.com/foo'
+```
+
+| Input                 | Base                    | Resolution                     | Explanation                                                  |
+|-----------------------|-------------------------|--------------------------------|--------------------------------------------------------------|
+| `https://example.com` | _any_                   | `https://example.com/`         | Input is normalized only                                     |
+| `//example.com`       | `https://base.com/`     | `https://example.com/`         | Input inherits the base's protocol                           |
+| `//example.com`       | _rest_                  | `//example.com/`               | Input is normalized only                                     |
+| `/example`            | `https://base.com/`     | `https://base.com/example`     | Input inherits the base's origin                             |
+| `/example`            | `//base.com/`           | `//base.com/example`           | Input inherits the base's host and remains protocol relative |
+| `/example`            | _rest_                  | `/example`                     | Input is normalized only                                     |
+| `example`             | `https://base.com/dir/` | `https://base.com/dir/example` | Input is joined with the base                                |
+| `example`             | `https://base.com/file` | `https://base.com/example`     | Input is joined with the base without its file               |
+| `example`             | `//base.com/dir/`       | `//base.com/dir/example`       | Input is joined with the base's last directory               |
+| `example`             | `//base.com/file`       | `//base.com/example`           | Input is joined with the base without its file               |
+| `example`             | `/base/dir/`            | `/base/dir/example`            | Input is joined with the base's last directory               |
+| `example`             | `/base/file`            | `/base/example`                | Input is joined with the base without its file               |
+| `example`             | `base/dir/`             | `base/dir/example`             | Input is joined with the base's last directory               |
+| `example`             | `base/file`             | `base/example`                 | Input is joined with the base without its file               |