delete useless data + change gitattributes

.gitattributes

@@ -35,3 +35,4 @@ saved_model/**/* filter=lfs diff=lfs merge=lfs -text
 *tfevents* filter=lfs diff=lfs merge=lfs -text
 data/pose/squat.mp4 filter=lfs diff=lfs merge=lfs -text
 data/pose/squat_inference.mp4 filter=lfs diff=lfs merge=lfs -text
+*.pdf filter=lfs diff=lfs merge=lfs -text

data/fitness_programs/links.txt

@@ -1,4 +0,0 @@
-https://www.muscleandstrength.com/workouts/8-week-super-strength-workout
-https://www.muscleandstrength.com/workouts/10-week-mass-building-program.html
-https://www.muscleandstrength.com/workouts/3-day-dumbbell-only-workout-for-women
-https://www.muscleandstrength.com/workouts/8-week-womens-beginner-fat-loss-workout

data/nutrition/links.txt

@@ -1,4 +0,0 @@
-https://www.toutelanutrition.com/wikifit/guide-nutrition/nutrition-sportive/les-grands-principes-de-la-nutrition-sportive
-https://www.toutelanutrition.com/wikifit/guide-nutrition/nutrition-sportive/apports-proteines
-https://www.toutelanutrition.com/wikifit/guide-nutrition/nutrition-sportive/idees-recues
-https://www.toutelanutrition.com/wikifit/guide-nutrition/nutrition-sportive/complements

requirements.txt

@@ -11,4 +11,6 @@ langchain
 bs4
 chromadb
 langgraph
-langchainhub
+langchainhub
+pypdf
+duckduckgo-search