Module reactions 

Canonical reaction-count codec shared between the meta adapter (which writes to the actions_data.reactions column) and the STAT native hook (which normalizes inbound STAT content.r).

Wire format: “,,,…”

• total is the uncapped sum; the per-type list is capped to the top 5 entries, sorted DESC by count then ASC by code.
• Empty list with total == 0 encodes as an empty string.

Functions

decode_reaction_counts

Decodes the canonical wire format into (entries, total). Lenient: skips malformed tokens silently.

encode_reaction_counts

Encodes reactions into the canonical wire format. Sorts and truncates entries in place so callers can’t accidentally pass unsorted data. Returns “” when total == 0.

reaction_type_key

Map a reaction sub_type (e.g. “LIKE”) to its single-char wire key.