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/yaml/dist/parse/lexer.d.ts

@@ -0,0 +1,87 @@
+/**
+ * Splits an input string into lexical tokens, i.e. smaller strings that are
+ * easily identifiable by `tokens.tokenType()`.
+ *
+ * Lexing starts always in a "stream" context. Incomplete input may be buffered
+ * until a complete token can be emitted.
+ *
+ * In addition to slices of the original input, the following control characters
+ * may also be emitted:
+ *
+ * - `\x02` (Start of Text): A document starts with the next token
+ * - `\x18` (Cancel): Unexpected end of flow-mode (indicates an error)
+ * - `\x1f` (Unit Separator): Next token is a scalar value
+ * - `\u{FEFF}` (Byte order mark): Emitted separately outside documents
+ */
+export declare class Lexer {
+    /**
+     * Flag indicating whether the end of the current buffer marks the end of
+     * all input
+     */
+    private atEnd;
+    /**
+     * Explicit indent set in block scalar header, as an offset from the current
+     * minimum indent, so e.g. set to 1 from a header `|2+`. Set to -1 if not
+     * explicitly set.
+     */
+    private blockScalarIndent;
+    /**
+     * Block scalars that include a + (keep) chomping indicator in their header
+     * include trailing empty lines, which are otherwise excluded from the
+     * scalar's contents.
+     */
+    private blockScalarKeep;
+    /** Current input */
+    private buffer;
+    /**
+     * Flag noting whether the map value indicator : can immediately follow this
+     * node within a flow context.
+     */
+    private flowKey;
+    /** Count of surrounding flow collection levels. */
+    private flowLevel;
+    /**
+     * Minimum level of indentation required for next lines to be parsed as a
+     * part of the current scalar value.
+     */
+    private indentNext;
+    /** Indentation level of the current line. */
+    private indentValue;
+    /** Position of the next \n character. */
+    private lineEndPos;
+    /** Stores the state of the lexer if reaching the end of incpomplete input */
+    private next;
+    /** A pointer to `buffer`; the current position of the lexer. */
+    private pos;
+    /**
+     * Generate YAML tokens from the `source` string. If `incomplete`,
+     * a part of the last line may be left as a buffer for the next call.
+     *
+     * @returns A generator of lexical tokens
+     */
+    lex(source: string, incomplete?: boolean): Generator<string, void>;
+    private atLineEnd;
+    private charAt;
+    private continueScalar;
+    private getLine;
+    private hasChars;
+    private setNext;
+    private peek;
+    private parseNext;
+    private parseStream;
+    private parseLineStart;
+    private parseBlockStart;
+    private parseDocument;
+    private parseFlowCollection;
+    private parseQuotedScalar;
+    private parseBlockScalarHeader;
+    private parseBlockScalar;
+    private parsePlainScalar;
+    private pushCount;
+    private pushToIndex;
+    private pushIndicators;
+    private pushTag;
+    private pushNewline;
+    private pushSpaces;
+    private pushUntil;
+}