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.env.example

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+# YouTube channel ID (from the channel URL or About page)
+YOUTUBE_CHANNEL_ID=UCAVIMKN9_5XthvtVdlmEoHg
+
+# Facebook Page access token (long-lived, from Graph API Explorer)
+FACEBOOK_ACCESS_TOKEN=
+# Facebook Page ID (numeric or username)
+FACEBOOK_PAGE_ID=
+
+# LinkedIn OAuth2 access token
+LINKEDIN_ACCESS_TOKEN=
+# LinkedIn author URN — person: urn:li:person:XXXXX  or org: urn:li:organization:XXXXX
+LINKEDIN_AUTHOR_URN=urn:li:person:XXXXX
+
+# Path inside the container where the CSV cache is stored (optional)
+CACHE_FILE_PATH=/data/cache.csv