Introduce a centralized `block-processor` and `block-scanner` to
handle markdown fenced code blocks. This replaces the previous
`inline-blocks.ts` and individual completion sources with a unified
approach that handles block stripping, directive replacement, and
metadata extraction (stats, templates, and spark tables) in a single
pass.
Introduces a new `template` stat type that allows for table-based
lookups via CSV blocks in markdown files. When a template stat is
rolled, it uses a dice expression defined in the template to select
an entry, applies a label, and automatically updates associated
modifier stats using relative values.
Introduces a scoping mechanism for statistics, allowing properties
to be defined as either "player" (prefixed with player name) or
"global".
- Adds `scope` property to StatDef
- Implements key resolution to handle bare keys vs full keys
- Updates `canModifyStat` to enforce player-specific permissions
- Enhances `makeStatLookup` to resolve scoped references in formulas
- Adds documentation for the new stat system