TODO-008: ticket-valued meta clicks navigate to that ticket

Now: OPEN
Sev: LOW
Rep: ///be/
On1: TODO-004
Ask: gritzko

Nit (gritzko, 2026-08-04): when a meta pair's value is a ticket code (On1: ABC-020, See: BE-050, Dup:, Sub: …), clicking that value must NAVIGATE to the ticket's page, not toggle a filter. TODO-004 made both halves clickable, but a value click replaces that key's filter in the arg line — and for ticket-valued keys filtering is presence-only, so the click is dead weight exactly where a jump is wanted.

Input

Context

TODO-004 click model: the spell carries the WHOLE arg line and a value click swaps that key's Key:Value filter in it.
TODO-004 already lexes [A-Z]+-[0-9]+ as the ticket-id class in the :todo arg grammar; the same class decides here.
Registered ticket-valued keys per todo: On1: On2: … See: Dup: Sub:; values are one ticket code per slot.

Goals

A meta VALUE that lexes as a ticket id clicks to :todo TKT-123 — same landing as clicking that ticket's board row.
The KEY half keeps its present behavior (presence filter).
Applies wherever meta pairs render: the ticket-view meta block and any board-row inline values.

Constraints

The value's lexical class alone decides — no key registry; an unknown key with a ticket-shaped value navigates too.
Click spell stays the whole-line BRO-025 shape; the pager stays arg-blind, resolution in the verb (Nav design law).
A dangling target (no such ticket) gets the :todo verb's existing plain-words error, nothing new.
Repro through the real UI path: a pty click on a rendered ticket-valued pair must FLIP from today's filter/no-op to landing on the ticket page; TLV-only probes do not count.

WIP

Design decisions

ONE navSpell(v): shape(v)==="key" → todo v, else null.
Both render sites call it — the page meta block (pageLinks) and the board's inline [value] bracket (todoFilter).
NO page-file probe at render: the class alone decides, and a dangling code lands on todo's own miss line.
The KEY half is untouched — still Key:* on the whole line.

TODOs

pty repro: click a See: value in a ticket view — RED
value classifier at render: ticket-id class → nav spell
board inline values get the same treatment
golden/pty: nav click lands, key click still filters
ctest green; no unrelated rows disturbed

Blockers and bummers

On1:/On2: do NOT lex as meta pairs: metaidx KEYRE is [A-Z][a-z][a-z]: and metaBlock BREAKS at the first non-pair line, so every pair BELOW an On1: is lost to the index and to the click layer. Repro'd, NOT fixed — own ticket (spec-code gap vs todo, which registers it).
So the repro uses See: + an unregistered Zzz: instead.

Outcome

views/todo/todo.js only; new pty case test/todo/nav (be-js-todo-nav), RED before the fix, GREEN after; 350/350.
commit: TODO-008: ticket-valued meta pairs click to nav