docs(readme): annotated tab-states and codeman-skill GIFs

Tab Alerts now shows a 17.5 s seamless loop of real sessions: a working
tab (spinning green ring), a red tab blocked on a real AskUserQuestion,
and a yellow tab whose turn is done, with a magnified tab strip and one
callout per state. It replaces the 2026-08-15 glow strip.

The agent skill section gets a time-lapse of a real run: one plain
English request, the codeman skill spawning three Claude Code workers as
new tabs, and the lineage lines drawing in, with numbered callouts that
appear as each step happens.

Both GIFs are 1920x1080 and link to 4800x2700 annotated stills.

Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>

README.md

@@ -422,7 +422,7 @@ The title is templated into the served HTML on first byte, so it's correct from
 ### Tab Alerts
 
 <p align="center">
-  <img src="docs/images/tab-alerts-glow-20260815.gif" alt="Session tabs: a regular active tab beside a yellow waiting-for-input tab and a red needs-decision tab, both with a breathing glow" width="900">
+  <a href="docs/images/codeman-tab-states-20261010.png"><img src="docs/images/codeman-tab-states-20261010.gif" alt="Tab states, annotated: a working tab with a spinning green ring, a red tab blocked on the agent's question shown below it, and a yellow tab whose turn is done, both alert tabs breathing" width="900"></a>
 </p>
 
 Every tab tells you its state at a glance. A running session keeps its green status dot. When a session stops and waits for input, its tab turns **yellow**: steady ring, tinted background, yellow dot, with a slow breathing glow on top. When a permission prompt or question is **blocking** the agent, the tab turns **red** with a faster pulse. The base tint never blinks off, so even a split-second glance (or a screenshot) reads the true state; the ring stays visible while the tab is selected, and a page reload re-arms pending alerts from the server, so a blocked session can never hide behind a fresh-looking tab.
@@ -735,6 +735,10 @@ For AI agents and automation that control Codeman without a browser: an agent th
 
 Everything in this section also ships as a **Claude Code skill** in [`skills/codeman`](skills/codeman/SKILL.md). Install it once and you never paste API docs into a prompt again. You ask for what you want in plain English, and the agent already sitting inside a Codeman session loads the recipes and drives the API itself.
 
+<p align="center">
+  <a href="docs/images/codeman-skill-20261010.png"><img src="docs/images/codeman-skill-20261010.gif" alt="A real codeman skill run: one plain-English request to a lead session, three Claude Code workers opening as new tabs, and lineage lines from the lead to every worker" width="900"></a>
+</p>
+
 #### Step 1: install it
 
 | How            | Command                                                    | Scope                                                                                      |