Status line: move model segment to the right cluster (model, cost, time)

Left group keeps the where-am-I identity (host, path, git, pr); the right
cluster carries what's-running (model) plus cost and elapsed time, painted
in array order. context_pct verified to hoist into the inline meter spacer
regardless of array position. Docs + changelog updated.

omp-docs/pi/statusline.md

@@ -88,11 +88,12 @@ modes. The fleet runs `true` — logical label, worktree glyph (verified live
 ## Fleet configuration (2026-10-18)
 
 - Shape `band`: one merged status row. Left group: `session_name`, `vim`,
-  `mode`, `hostname`, `model`, `path`, `git` (no branch text — worktree
-  branches are autogenerated names), `pr`. Right group: `cost`,
-  `context_pct`, `time_spent`, with the labeled inline context meter
-  between the groups. `session_name` renders on the working row, not the
-  status row.
+  `mode`, `hostname`, `path`, `git` (no branch text — worktree branches are
+  autogenerated names), `pr`. Right group (array order = paint order, so the
+  last entry hugs the screen edge): `model`, `cost`, `context_pct`,
+  `time_spent` — `context_pct` hoists out of the run to paint the labeled
+  inline meter (`60% ——— × 200K`) as a flexible spacer between the groups.
+  `session_name` renders on the working row, not the status row.
 - Deliberately cut: `token_rate` (lives on the working row), `time` (panel
   clock), `cache_*` (noise), `context_total` (implied by the meter),
   `subagents`, `session`, `token_in`/`token_out` (cumulative totals are