Track the external Reddit video maker as a submodule

Keep the third-party bot in a dedicated submodule so its history and update cadence stay isolated from the main repo while still making it available in-tree for local workflows.

Constraint: The upstream code should remain separately updatable without copying its files into this repository.
Rejected: Copy the project into the tree directly | duplicated history and harder future syncing.
Confidence: high
Scope-risk: narrow
Directive: Update the submodule by moving it deliberately; do not edit its contents from the parent repo without planning that workflow.
Tested: git submodule add; git submodule status; inspected .gitmodules
Not-tested: Upstream repo build/runtime inside this checkout.

.gitmodules

@@ -0,0 +1,3 @@
+[submodule "vendor/FullyAutomatedRedditVideoMakerBot"]
+	path = vendor/FullyAutomatedRedditVideoMakerBot
+	url = https://github.com/raga70/FullyAutomatedRedditVideoMakerBot.git

vendor/FullyAutomatedRedditVideoMakerBot

@@ -0,0 +1 @@
+Subproject commit 6e5c9ffacc5ac601cb596cfaa72fc947824a2ca3