In anticipation of adding about a dozen more features flags to support
work for LGB, PIN_ENABLED and PROCOINS_ENABLED have been moved to the
FEATURES dict in const.py. More generally looking to create a unified
interface for logically-related constants, perhaps to support e.g.
later moving these settings from hardcoded constants to data.
Original work started for WPD and LGB, who wish to restrict flags
visibility in the UI based on admin_level. To support this change and
upcoming changes, `const.PERMS: string -> int` was created.
Potentially targetting a future design where Permissions is a proper
business object integrated with the User model; however, for now just
looking toward getting admin_level magic numbers centralized.
This commit applies PERMS to: create_hole, flags visibility in UI,
flag removal in UI & backend. Flag visibility in Comment & Submission
json_raw methods is unaffected to avoid needing a user object to
build the JSON.
Commit began by changing the duplicated SITE_NAME conditional in the
header to use a `has_logo` param, much like the recent `has_sidebar`.
From there, a need to include site-specific assets in assetcache was
revealed, adding the `asset_siteimg(...)` macro. This was applied
quite broadly, though not comprehensively.