feat: add ai course generator (#8322)

* Course landing page

* Add ai course page

* wip

* wip

* wip

* wip

* wip

* wip

* wip

* wip: error handling

* wip

* wip

* wip

* wip: ai course progress

* wip

* wip

* wip

* feat: code highlighting

* feat: usage limit

* feat: follow up message

* Update UI

* wip

* Add course content

* wip: autogrow textarea & examples

* Update types

* Update

* fix: add highlight to the AI chat

* UI changes

* Refactor

* Update

* Improve outline style

* Improve spacing

* Improve spacing

* UI changes for sidebar

* Update UI for sidebar

* Improve course UI

* Mark done, undone

* Add toggle lesson done/undone

* Update forward backward UI

* wip

* Minor ui change

* Responsiveness of sidebar

* wip

* wip

* wip: billing page

* wip

* Update UI

* fix: hide upgrade if paid user

* feat: token usage

* feat: list ai courses

* fix: limit for followup

* Course content responsiveness

* Make course content responsive

* Responsiveness

* Outline button

* Responsiveness of course content

* Responsiveness of course content

* Add course upgrade button

* Update design for upgrade

* Improve logic for upgrade and limits button

* Limits and errors

* Add lesson count

* Add course card

* Improve UI for course generator

* Update course functionality

* Refactor AI course generation

* Responsiveness of screen

* Improve

* Add responsiveness

* Improve empty billing page design

* Add empty billing screen

* Update UI for billing page

* Update UI for billing page

* Update UI for billing page

* Update billing page design

* Update

* Remove sidebar

* Update

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Co-authored-by: Arik Chakma <arikchangma@gmail.com>

src/api/ai-roadmap.ts

@@ -18,3 +18,16 @@ export function aiRoadmapApi(context: APIContext) {
     },
   };
 }
+
+export interface AICourseDocument {
+  _id: string;
+  userId: string;
+  title: string;
+  slug?: string;
+  keyword: string;
+  difficulty: string;
+  data: string;
+  viewCount: number;
+  createdAt: Date;
+  updatedAt: Date;
+}