Add addUserText helper; update all call sites

Conversation.addUserMessage now takes a []ContentBlock (symmetric with
addAssistantMessage). Introduce a thin addUserText wrapper in agent.zig
for the plain-text case and update every call site in agent.zig and
anthropic_messages_json.zig accordingly.

1 files changed, 26 insertions, 0 deletions

diff --git a/libpanto-lua/build.zig.zon b/libpanto-lua/build.zig.zon
new file mode 100644
index 0000000..d685c13
--- /dev/null
+++ b/libpanto-lua/build.zig.zon
@@ -0,0 +1,26 @@
+.{
+    .fingerprint = 0xe0ed1e60c285f54f,
+    .name = .panto_lua,
+    .version = "0.0.0",
+    .dependencies = .{
+        .panto = .{
+            .path = "../libpanto",
+        },
+        // Lua 5.4 source — used only for its headers (`lua.h`,
+        // `lauxlib.h`, `lualib.h`) at `@cImport` time. A Lua C-module
+        // does NOT link the Lua library: the host interpreter provides
+        // every `lua_*`/`luaL_*` symbol at `dlopen` time, resolved via
+        // dynamic lookup. We pin the same tarball the CLI uses so the
+        // standalone module and the embedded VM build against identical
+        // 5.4 headers.
+        .lua_src = .{
+            .url = "https://www.lua.org/ftp/lua-5.4.7.tar.gz",
+            .hash = "N-V-__8AAIMvFABt-Qcpk24RD10ldEN743D8Q2e19Er8x3dJ",
+        },
+    },
+    .paths = .{
+        "build.zig",
+        "build.zig.zon",
+        "src",
+    },
+}