Module wiki 

Wiki rendering — markdown summary for a single symbol assembled from the graph store. Pure formatter: no I/O beyond the store reads.

Output shape (markdown):

# <name> (<kind>)

**Defined in** `<file>:<start>-<end>` · visibility=<vis> · async=<bool> ...

## Signature
```<lang>
<signature>

Doc

<doc_comment>

Callers (N)

• () — :

Calls (N)

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Used by (N)

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Functions

render_symbol

Markdown wiki rendering for name on branch. Returns an Err only when the store itself fails; “symbol not found” is surfaced by the upstream symbol_context error.