RHOAIENG-35713: Cypress Tests for the MCP Feature Flow (opendatahub-io#5115)

* added cypress tests for the MCP Tab and playground

Signed-off-by: Lucifergene <47265560+Lucifergene@users.noreply.github.com>

* test ci

Signed-off-by: Lucifergene <47265560+Lucifergene@users.noreply.github.com>

* test ci-2

Signed-off-by: Lucifergene <47265560+Lucifergene@users.noreply.github.com>

* test ci-3

Signed-off-by: Lucifergene <47265560+Lucifergene@users.noreply.github.com>

* test ci-4

Signed-off-by: Lucifergene <47265560+Lucifergene@users.noreply.github.com>

* fixed existing tests

Signed-off-by: Lucifergene <47265560+Lucifergene@users.noreply.github.com>

* added mocked mode for mcp e2e

Signed-off-by: Lucifergene <47265560+Lucifergene@users.noreply.github.com>

* fixed timeout issues

Signed-off-by: Lucifergene <47265560+Lucifergene@users.noreply.github.com>

* fixed timeout issues-2

Signed-off-by: Lucifergene <47265560+Lucifergene@users.noreply.github.com>

* fixed all review comments

Signed-off-by: Lucifergene <47265560+Lucifergene@users.noreply.github.com>

---------

Signed-off-by: Lucifergene <47265560+Lucifergene@users.noreply.github.com>

Author: Lucifergene

packages/gen-ai/frontend/.gitignore

@@ -1,5 +1,6 @@
 **/node_modules
 dist
+public-cypress
 yarn-error.log
 yarn.lock
 stats.json
@@ -8,4 +9,5 @@ storybook-static
 .DS_Store
 .idea
 .history
-public-cypress
+public-cypress
+**/test-variables.json