fix: collapse restored JSDoc to single line for diff-clean docs regen

Multi-line JSDoc comments produced multi-line description text in the
TypeDoc-rendered markdown, which git diffed against the original single-line
descriptions in main. Functionally identical; just whitespace.

Collapsing onSetupMessage, hidden, and stability JSDoc to single-line
matches the original markdown formatting verbatim. Net change vs main on
docs/docs/api/appkit/Interface.PluginManifest.md is now just the See link
swap (deleted plugin-manifest.generated.ts -> Zod source of truth pointer).

Co-authored-by: Isaac
Signed-off-by: Atila Fassina <atila@fassina.eu>

Author: atilafassina

docs/docs/api/appkit/Interface.PluginManifest.md

@@ -84,10 +84,8 @@
   },
   "scaffolding": {
     "rules": {
-      "must": [
-        "After init, run any database migrations for your chosen ORM before first request"
-      ],
       "should": [
+        "After init, run any database migrations for your chosen ORM before first request",
         "After init, verify Lakebase connectivity with 'psql $PGHOST -c \"select 1\"'"
       ]
     }

packages/appkit/src/plugins/lakebase/manifest.json

@@ -143,22 +143,11 @@ export interface PluginManifest<TName extends string = string>
   keywords?: string[];
   /** SPDX license identifier */
   license?: string;
-  /**
-   * Message displayed to the user after project initialization. Use this to
-   * inform about manual setup steps (e.g. environment variables, resource
-   * provisioning).
-   */
+  /** Message displayed to the user after project initialization. Use this to inform about manual setup steps (e.g. environment variables, resource provisioning). */
   onSetupMessage?: string;
-  /**
-   * When true, this plugin is excluded from the template plugins manifest
-   * (appkit.plugins.json) during sync.
-   */
+  /** When true, this plugin is excluded from the template plugins manifest (appkit.plugins.json) during sync. */
   hidden?: boolean;
-  /**
-   * Plugin stability level. Beta plugins may have breaking API changes between
-   * minor releases but are on a path to GA. GA (general availability) plugins
-   * follow semver strictly.
-   */
+  /** Plugin stability level. Beta plugins may have breaking API changes between minor releases but are on a path to GA. GA (general availability) plugins follow semver strictly. */
   stability?: "beta" | "ga";
 }