Remove README imagery (#3)

## What changed

- Removed every inline image and image caption from the README,
including the Daniel portrait, iMessage example, dashboard screenshots,
and image-memory example.
- Deleted the dog-memory example asset from the repository.

## Why

The README should present Daniel through text only, without product
screenshots or legacy dog imagery.

## Validation

- `npm run validate`
- Branding guard passed
- Typecheck passed
- 12 test files / 70 tests passed
- Production dashboard build passed
- Confirmed the README has no image markup or asset-image references

Co-authored-by: tecxbro <tecxbro@users.noreply.github.com>

Author: tecxbro

README.md

@@ -1,7 +1,3 @@
-<p align="center">
-  <img src="assets/daniel.png" alt="Daniel portrait" width="220" />
-</p>
-
 # Daniel
 
 Daniel is a self-hosted personal agent that lives in iMessage. It can run on
@@ -13,12 +9,6 @@ routes work to focused execution workers, Convex stores durable state, Photon
 Spectrum carries iMessages, and the operations dashboard exposes memory,
 automations, integrations, coding workspaces, browser controls, and usage.
 
-<p align="center">
-  <img src="assets/imessage.jpg" alt="Daniel replying inside iMessage" width="320" />
-  <br>
-  <sub><em>Ask naturally in iMessage; Daniel keeps context and delegates work.</em></sub>
-</p>
-
 ## What Daniel Includes
 
 - **iMessage transport** through Photon Spectrum, including attachment
@@ -55,30 +45,6 @@ automations, integrations, coding workspaces, browser controls, and usage.
 The dashboard is a React/Vite application backed by live Convex queries and
 the local Daniel server.
 
-<p align="center">
-  <img src="assets/agents-view.jpg" alt="Daniel agents dashboard" width="840" />
-  <br>
-  <sub><em>Agents — runtime, status, usage, tool activity, and worker summaries.</em></sub>
-</p>
-
-<p align="center">
-  <img src="assets/automations.jpg" alt="Daniel automations dashboard" width="840" />
-  <br>
-  <sub><em>Automations — recurring jobs created from natural-language schedules.</em></sub>
-</p>
-
-<p align="center">
-  <img src="assets/memory-graph.jpg" alt="Daniel memory dashboard" width="840" />
-  <br>
-  <sub><em>Memory — searchable records across short, long, and permanent tiers.</em></sub>
-</p>
-
-<p align="center">
-  <img src="assets/connections.jpg" alt="Daniel connections dashboard" width="840" />
-  <br>
-  <sub><em>Connections — external toolkits available to delegated workers.</em></sub>
-</p>
-
 ## System Map
 
 ```text
@@ -239,12 +205,6 @@ Inbound images can flow through both the interaction agent and spawned
 workers. Raw image bytes expire according to
 `DANIEL_IMAGE_RETENTION_DAYS` unless a memory record anchors them.
 
-<p align="center">
-  <img src="assets/image-memory-example.jpeg" alt="Example image for Daniel image understanding" width="280" />
-  <br>
-  <sub><em>Example input for image understanding and memory anchoring.</em></sub>
-</p>
-
 ## Automations and Proactive Work
 
 Daniel turns schedules such as “every weekday at 8, summarize my calendar”