Task: Implement the Contact Renderer feature

TASK-DESCRIPTION

Create: sources/render/contact_render.h
Create: sources/render/contact_render.cpp
Create: tests/contact_render_test.cpp
Create: tests/40-contact-render.sh
Modify: sources/CMakeLists.txt

The renderer implements the requirements in prompts/features/04-contact-renderer.md. It draws one self-contained SVG card: the name, organisation, title, the reach sections, the postal addresses, the note, and an embedded photo. Every string from the card is escaped, and only mailto:, tel:, http:, and https: are made clickable, so a card cannot put a javascript: link into the file.

TASK-OUTPUT

Produce these complete files in this order, then the VERIFICATION: line: 1. sources/render/contact_render.h 2. sources/render/contact_render.cpp 3. tests/contact_render_test.cpp 4. tests/40-contact-render.sh 5. sources/CMakeLists.txt

TASK-CONTEXT

The renderer reads the model from sources/vcard/vcard_model.h and does not reopen the file, so the card it draws is the card the reader returned. documents/10-vcard-format.md records the value forms it must expect.

The SVG is XML written from untrusted input. Escape every card-supplied string, and never build an href from a scheme other than mailto:, tel:, http:, or https:.

TASK-FILES

Operation	Path
create	`sources/render/contact_render.h`
create	`sources/render/contact_render.cpp`
create	`tests/contact_render_test.cpp`
create	`tests/40-contact-render.sh`
modify	`sources/CMakeLists.txt`

TASK-VERIFY

Run: make test from the repository root.
Expected: exit status 0, with 40-contact-render reporting ok.

TASK-FEATURES

prompts/features/04-contact-renderer.md

TASK-ACCEPTANCE

CONTACT-RENDERER-R001
CONTACT-RENDERER-R002
CONTACT-RENDERER-R003
CONTACT-RENDERER-R004
CONTACT-RENDERER-R005
CONTACT-RENDERER-R006
CONTACT-RENDERER-R008
CONTACT-RENDERER-R013

OUTPUT: the complete files in the order listed, ending with the VERIFICATION: line.