[IMP]google_tag_manager_advanced_tracking, facebook_pixel_tracking

[fw-bot-adhoc]

google_tag_manager_advanced_tracking:

• Shipping and discount separated from product items in GTM events
• Reward lines filtered from items, accumulated as discount
• Replaced legacy Python-dict string parsing with standard JSON.parse

facebook_pixel_tracking:

• Migrated all events to current Meta Pixel standard (content_ids, contents, currency, value)
• Fixed critical bug: Purchase event was not being fired (missing event name)
• Delivery and reward lines excluded from contents

website_sale_advanced_tracking (shared):

• prepare_purchase_information: delivery/reward lines separated; returns json.dumps()
• prepare_checkout_information: added is_reward_line flag; item_name uses product name; returns json.dumps()
• Template: data-product_id on add_to_cart now uses product.id (always present) instead of default_code

Forward-Port-Of: #451

[roboadhoc]

[fw-bot-adhoc]

@JrAdhoc @cem-adhoc cherrypicking of pull request #451 failed.

stdout:

CONFLICT (modify/delete): facebook_pixel_tracking/static/src/js/website_sale_tracking.js deleted in e9aa8e7dd3e7f495758de7710f7b5500db4fb4ca and modified in e7ed3d553e640efbe0aedd33f438214083ef1525.  Version e7ed3d553e640efbe0aedd33f438214083ef1525 of facebook_pixel_tracking/static/src/js/website_sale_tracking.js left in tree.
Auto-merging google_tag_manager_advanced_tracking/static/src/interactions/website_sale_tracking.js
CONFLICT (content): Merge conflict in google_tag_manager_advanced_tracking/static/src/interactions/website_sale_tracking.js
Auto-merging website_sale_advanced_tracking/views/templates.xml

Either perform the forward-port manually (and push to this branch, proceeding as usual) or close this PR (maybe?).

you can use git-fw to re-do the forward-port for you locally.

⚠️ after resolving this conflict, you will need to merge it via @roboadhoc.

More info at https://github.com/odoo/odoo/wiki/Mergebot#forward-port