fix(terminal): address scrolling review and preserve upstream speed policies

Fix transport-timer regression coverage, zero-delta tile handling and capability documentation. Record isolated Codex 0.163.0 transcript and approval evidence; defer event/batch rate and coarse paging policy changes.

Refs: https://github.com/johoja12/Codeman/issues/7

src/config/cli-registry/schema.ts

@@ -295,7 +295,7 @@ const capabilitiesSchema = z
     altScreen: z.enum(['strip-full', 'strip-mux-only', 'strip-mux-and-mouse', 'preserve']),
     echo: echoSchema,
     wheelForward: z
-      .object({ mode: z.enum(['never', 'version-gated']), minVersion: z.string().max(20).optional() })
+      .object({ mode: z.enum(['never', 'version-gated', 'mouse-tracking']), minVersion: z.string().max(20).optional() })
       .strict(),
     // Whether a hollow pane's wheel/touch scroll may be turned into PageUp/PageDown for
     // the CLI to page its own transcript. Distinct from wheelForward (SGR reports).

src/config/cli-registry/stock.ts

@@ -733,8 +733,8 @@ const CODEX: CliEntry = {
     transcript: 'codex-rollout',
     altScreen: 'strip-full',
     echo: { policy: 'predict', anchor: { kind: 'cursor' }, predictProfile: 'codex' },
-    wheelForward: { mode: 'never' }, // #227: codex ignores SGR wheel reports, never forward
-    // ...but it DOES page its transcript on PageUp/PageDown. Measured on 0.157.1 (local,
+    wheelForward: { mode: 'mouse-tracking' }, // 0.163.0 fullscreen: measured SGR scrolling; require observed tracking
+    // Without observed mouse tracking, retain PageUp/PageDown fallback. Measured on 0.157.1 (local,
     // alternate screen inside tmux, so xterm holds no history) and 0.160 (remote): PageUp
     // moved the visible transcript while SGR wheel reports and local scrolling did nothing.
     // This is the page-key fallback for a hollow pane, not wheel forwarding.

src/config/cli-registry/types.ts

@@ -513,8 +513,8 @@ export interface CliCapabilities {
     /** Names a PREDICT_PROFILES key. Unknown or absent degrades to 'buffer', never to broken. */
     predictProfile?: string;
   };
-  /** Forwarding the wheel to the CLI's own transcript. 'never' keeps local scrollback. */
-  wheelForward: { mode: 'never' | 'version-gated'; minVersion?: string };
+  /** Wheel forwarding policy. Every enabled policy also requires observed CLI mouse tracking. */
+  wheelForward: { mode: 'never' | 'version-gated' | 'mouse-tracking'; minVersion?: string };
   /**
    * The CLI pages its OWN transcript on PageUp/PageDown, so a wheel or touch scroll over
    * a pane with no local history can be turned into those keys instead of doing nothing
@@ -523,8 +523,8 @@ export interface CliCapabilities {
    *
    * ⚠ NOT wheel forwarding. `wheelForward` above sends SGR mouse wheel REPORTS; this sends
    * plain keys, and only when the local buffer is hollow (normal buffer, `baseY === 0`).
-   * A CLI can ignore one and honour the other: codex ignores SGR wheel reports (so its
-   * `wheelForward` stays 'never') yet pages on PageUp/PageDown.
+   * A CLI can ignore one and honour the other: Codex without observed mouse tracking
+   * uses this fallback, while fullscreen Codex 0.163.0 accepts SGR wheel reports.
    *
    * Absent means no paging, so a CLI nobody has measured keeps plain local scrolling.
    */