Migrate panto CLI onto the public.zig surface

Move the CLI off the internal libpanto module namespaces onto the curated
public API: data-type aliases (Config family, Message/MessageRole/
effectiveSystemBlocks, Event, Pricing/PricingRegistry, the session seam,
FileSystemJSONLStore, ContentBlockType), process lifecycle (panto.init/
deinit), and ResultParts.fromText/fromTextOwned/deinit in place of the
freestanding textResult/ownedTextResult/freeResultParts.

The CLI remains on two flagged internal namespaces, panto.agent and
panto.conversation: it is a deep embedder that drives the loop below the
curated Agent/Conversation facades (system-prompt seeding through the
agent, compaction_system_prompt, the open_stream_fn test seam, standalone
Conversation values, compactAndPersist). These stay re-exported from
public.zig as a documented deep-embedder escape hatch; trimming the
transitional block removed every other internal re-export.

1 files changed, 3 insertions, 3 deletions

diff --git a/src/models_toml.zig b/src/models_toml.zig
index 790b61f..2e2a920 100644
--- a/src/models_toml.zig
+++ b/src/models_toml.zig
@@ -49,9 +49,9 @@ const Io = std.Io;
 const toml = @import("toml");
 const panto = @import("panto");
 
-pub const Pricing = panto.pricing.Pricing;
-pub const Registry = panto.pricing.Registry;
-pub const ReasoningEffort = panto.config.ReasoningEffort;
+pub const Pricing = panto.Pricing;
+pub const Registry = panto.PricingRegistry;
+pub const ReasoningEffort = panto.ReasoningEffort;
 
 /// A resolved model definition: the wire model id plus per-model knobs.
 /// Strings are owned by the `ModelRegistry`.