fix(usage): make plan-usage chip work end-to-end + session-status footer

End-to-end testing on the real install surfaced several issues the unit
tests missed:

- Injection gate excluded real sessions: gated on workingDir under CASES_DIR,
  but sessions run in linked cases / real repos. Drop the gate (match
  updateCaseModel, which writes settings.local.json unconditionally).
- statusLine curl failed on HTTPS: prod is loopback HTTPS with a self-signed
  cert; `curl -s` returns 000. Use `curl -sk` (loopback only). applyStatusLineConfig
  now also updates an out-of-date ours-command so the fix propagates.
- Footer hijacked by limits: the in-terminal statusline now shows CURRENT
  SESSION status — `Opus 4.8 (1M context)  in:562,411 out:1,188  ctx:56%` —
  while the account-wide plan limits live only in the header chip.
- Chip blank after reload: persist last-known to localStorage and restore on
  load (account-global, slow-moving; 12h freshness guard).
- Readability + color: per-window green/yellow/red by usage (<60 / 60–84 / ≥85),
  bolder labels and values.
- Drop the renderIndexHtml strip (client-side reveal only, response-viewer
  pattern) — fixes server-index-title test fragility to local settings.

Footer fields flow through context_window.total_input_tokens/total_output_tokens
(schema + parser). Tests updated; verified live (footer, chip, colors, reload
persistence) on the real install.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

src/web/schemas.ts

@@ -212,7 +212,13 @@ export const StatusTelemetrySchema = z.object({
           seven_day: RateLimitWindowSchema,
         })
         .optional(),
-      context_window: z.object({ used_percentage: z.number().optional() }).optional(),
+      context_window: z
+        .object({
+          used_percentage: z.number().optional(),
+          total_input_tokens: z.number().optional(),
+          total_output_tokens: z.number().optional(),
+        })
+        .optional(),
       cost: z.object({ total_cost_usd: z.number().optional() }).optional(),
       model: z.object({ display_name: z.string().max(100).optional() }).optional(),
     })