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/eslint/lib/linter/file-context.js

@@ -0,0 +1,144 @@
+/**
+ * @fileoverview The FileContext class.
+ * @author Nicholas C. Zakas
+ */
+
+"use strict";
+
+/**
+ * Represents a file context that the linter can use to lint a file.
+ */
+class FileContext {
+	/**
+	 * The current working directory.
+	 * @type {string}
+	 */
+	cwd;
+
+	/**
+	 * The filename of the file being linted.
+	 * @type {string}
+	 */
+	filename;
+
+	/**
+	 * The physical filename of the file being linted.
+	 * @type {string}
+	 */
+	physicalFilename;
+
+	/**
+	 * The source code of the file being linted.
+	 * @type {SourceCode}
+	 */
+	sourceCode;
+
+	/**
+	 * The parser options for the file being linted.
+	 * @type {Record<string, unknown>}
+	 * @deprecated Use `languageOptions` instead.
+	 */
+	parserOptions;
+
+	/**
+	 * The path to the parser used to parse this file.
+	 * @type {string}
+	 * @deprecated No longer supported.
+	 */
+	parserPath;
+
+	/**
+	 * The language options used when parsing this file.
+	 * @type {Record<string, unknown>}
+	 */
+	languageOptions;
+
+	/**
+	 * The settings for the file being linted.
+	 * @type {Record<string, unknown>}
+	 */
+	settings;
+
+	/**
+	 * Creates a new instance.
+	 * @param {Object} config The configuration object for the file context.
+	 * @param {string} config.cwd The current working directory.
+	 * @param {string} config.filename The filename of the file being linted.
+	 * @param {string} config.physicalFilename The physical filename of the file being linted.
+	 * @param {SourceCode} config.sourceCode The source code of the file being linted.
+	 * @param {Record<string, unknown>} config.parserOptions The parser options for the file being linted.
+	 * @param {string} config.parserPath The path to the parser used to parse this file.
+	 * @param {Record<string, unknown>} config.languageOptions The language options used when parsing this file.
+	 * @param {Record<string, unknown>} config.settings The settings for the file being linted.
+	 */
+	constructor({
+		cwd,
+		filename,
+		physicalFilename,
+		sourceCode,
+		parserOptions,
+		parserPath,
+		languageOptions,
+		settings,
+	}) {
+		this.cwd = cwd;
+		this.filename = filename;
+		this.physicalFilename = physicalFilename;
+		this.sourceCode = sourceCode;
+		this.parserOptions = parserOptions;
+		this.parserPath = parserPath;
+		this.languageOptions = languageOptions;
+		this.settings = settings;
+
+		Object.freeze(this);
+	}
+
+	/**
+	 * Gets the current working directory.
+	 * @returns {string} The current working directory.
+	 * @deprecated Use `cwd` instead.
+	 */
+	getCwd() {
+		return this.cwd;
+	}
+
+	/**
+	 * Gets the filename of the file being linted.
+	 * @returns {string} The filename of the file being linted.
+	 * @deprecated Use `filename` instead.
+	 */
+	getFilename() {
+		return this.filename;
+	}
+
+	/**
+	 * Gets the physical filename of the file being linted.
+	 * @returns {string} The physical filename of the file being linted.
+	 * @deprecated Use `physicalFilename` instead.
+	 */
+	getPhysicalFilename() {
+		return this.physicalFilename;
+	}
+
+	/**
+	 * Gets the source code of the file being linted.
+	 * @returns {SourceCode} The source code of the file being linted.
+	 * @deprecated Use `sourceCode` instead.
+	 */
+	getSourceCode() {
+		return this.sourceCode;
+	}
+
+	/**
+	 * Creates a new object with the current object as the prototype and
+	 * the specified properties as its own properties.
+	 * @param {Object} extension The properties to add to the new object.
+	 * @returns {FileContext} A new object with the current object as the prototype
+	 * and the specified properties as its own properties.
+	 */
+	extend(extension) {
+		return Object.freeze(Object.assign(Object.create(this), extension));
+	}
+}
+
+exports.FileContext = FileContext;