ctrl+v image + @file accepts images (#1695)

allow ctrl+v in TUI for images + @file that are images are appended as
raw files (and read by the model) rather than pasted as a path that
cannot be read by the model.

Re-used components and same interface we're using for copying pasted
content in
72504f1d9c.
@aibrahim-oai as you've implemented this, mind having a look at this
one?


https://github.com/user-attachments/assets/c6c1153b-6b32-4558-b9a2-f8c57d2be710

---------

Co-authored-by: easong-openai <easong@openai.com>
Co-authored-by: Daniel Edrisian <dedrisian@openai.com>
Co-authored-by: Michael Bolin <mbolin@openai.com>

codex-rs/tui/Cargo.toml

@@ -22,6 +22,7 @@ workspace = true
 
 [dependencies]
 anyhow = "1"
+arboard = "3"
 async-stream = "0.3.6"
 base64 = "0.22.1"
 chrono = { version = "0.4", features = ["serde"] }
@@ -41,7 +42,10 @@ codex-protocol = { path = "../protocol" }
 color-eyre = "0.6.3"
 crossterm = { version = "0.28.1", features = ["bracketed-paste", "event-stream"] }
 diffy = "0.4.2"
-image = { version = "^0.25.6", default-features = false, features = ["jpeg"] }
+image = { version = "^0.25.6", default-features = false, features = [
+    "jpeg",
+    "png",
+] }
 lazy_static = "1"
 mcp-types = { path = "../mcp-types" }
 once_cell = "1"
@@ -61,6 +65,7 @@ shlex = "1.3.0"
 strum = "0.27.2"
 strum_macros = "0.27.2"
 supports-color = "3.0.2"
+tempfile = "3"
 textwrap = "0.16.2"
 tokio = { version = "1", features = [
     "io-std",