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/.bin/acorn

@@ -0,0 +1 @@
+../acorn/bin/acorn

web/node_modules/.bin/cssesc

@@ -0,0 +1 @@
+../cssesc/bin/cssesc

web/node_modules/.bin/esbuild

@@ -0,0 +1 @@
+../esbuild/bin/esbuild

web/node_modules/.bin/eslint

@@ -0,0 +1 @@
+../eslint/bin/eslint.js

web/node_modules/.bin/jiti

@@ -0,0 +1 @@
+../jiti/lib/jiti-cli.mjs

web/node_modules/.bin/js-yaml

@@ -0,0 +1 @@
+../js-yaml/bin/js-yaml.js

web/node_modules/.bin/lz-string

@@ -0,0 +1 @@
+../lz-string/bin/bin.js

web/node_modules/.bin/marked

@@ -0,0 +1 @@
+../marked/bin/marked.js

web/node_modules/.bin/nanoid

@@ -0,0 +1 @@
+../nanoid/bin/nanoid.cjs

web/node_modules/.bin/node-which

@@ -0,0 +1 @@
+../which/bin/node-which

web/node_modules/.bin/prettier

@@ -0,0 +1 @@
+../prettier/bin/prettier.cjs

web/node_modules/.bin/rollup

@@ -0,0 +1 @@
+../rollup/dist/bin/rollup

web/node_modules/.bin/semver

@@ -0,0 +1 @@
+../semver/bin/semver.js

web/node_modules/.bin/svelte-check

@@ -0,0 +1 @@
+../svelte-check/bin/svelte-check

web/node_modules/.bin/tldts

@@ -0,0 +1 @@
+../tldts/bin/cli.js

web/node_modules/.bin/tsc

@@ -0,0 +1 @@
+../typescript/bin/tsc

web/node_modules/.bin/tsserver

@@ -0,0 +1 @@
+../typescript/bin/tsserver

web/node_modules/.bin/vite

@@ -0,0 +1 @@
+../vite/bin/vite.js

web/node_modules/.bin/vite-node

@@ -0,0 +1 @@
+../vite-node/vite-node.mjs

web/node_modules/.bin/vitest

@@ -0,0 +1 @@
+../vitest/vitest.mjs

web/node_modules/.bin/why-is-node-running

@@ -0,0 +1 @@
+../why-is-node-running/cli.js

web/node_modules/.bin/yaml

@@ -0,0 +1 @@
+../yaml/bin.mjs