docs: add PineScript links to all indicator .md files, docsify .pine renderer with comprehensive Prism v6 syntax highlighting

- Added PineScript row to property tables in 375 .md files linking to companion .pine files
- Docsify plugin intercepts .pine link clicks, fetches and renders content as syntax-highlighted code blocks
- Comprehensive Prism.languages.pine grammar covering 18 token categories: annotations, types, qualifiers, namespaces, OHLCV builtins, functions, keywords, operators
- Custom CSS tokens using GitHub dark palette for Pine-specific visual differentiation

lib/filters/bessel/Bessel.md

@@ -8,10 +8,9 @@
 | **Outputs**      | Single series (Bessel)                       |
 | **Output range** | Tracks input                     |
 | **Warmup**       | `length` bars                    |
+| **PineScript**   | [bessel.pine](bessel.pine)                       |
 | **Signature**    | [bessel_signature](bessel_signature.md) |
 
-### TL;DR
-
 - The Bessel Filter is a 2nd-order low-pass IIR filter designed to preserve the **shape** and **timing** of price moves.
 - Parameterized by `length`.
 - Output range: Tracks input.