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, 6 insertions, 6 deletions

diff --git a/src/config_file.zig b/src/config_file.zig
index f1ae65f..229a5b2 100644
--- a/src/config_file.zig
+++ b/src/config_file.zig
@@ -51,7 +51,7 @@ const models_toml = @import("models_toml.zig");
 // constructors/mutators.
 const tvalue = toml.value_mod;
 
-pub const APIStyle = panto.config.APIStyle;
+pub const APIStyle = panto.APIStyle;
 
 // ===========================================================================
 // Resolved config model
@@ -109,7 +109,7 @@ pub const Policy = struct {
     }
 };
 
-/// Build a `panto.config.ProviderConfig` for a chosen `<provider>:<alias>` model
+/// Build a `panto.ProviderConfig` for a chosen `<provider>:<alias>` model
 /// reference, combining the resolved provider (transport/auth) with the
 /// model definition from `models.toml` (wire name + knobs).
 ///
@@ -117,19 +117,19 @@ pub const Policy = struct {
 /// a missing alias falls back to using the alias verbatim as the wire
 /// model name with default knobs. Returns the assembled `Config` plus the
 /// wire model id (borrowed from `defs`/`ref` — valid as long as both
-/// outlive the returned config's use). The `panto.config.ProviderConfig` itself
+/// outlive the returned config's use). The `panto.ProviderConfig` itself
 /// borrows the provider/model strings; the caller must keep `cfg` (the
 /// `Config`) and `defs` alive for its lifetime.
 pub fn buildProviderConfig(
     cfg: *const Config,
     defs: *const models_toml.ModelRegistry,
     ref: ModelRef,
-) ResolveError!panto.config.ProviderConfig {
+) ResolveError!panto.ProviderConfig {
     const prov = cfg.provider(ref.provider) orelse return error.UnknownProvider;
 
     const def_opt = defs.get(ref.provider, ref.model);
     const wire_model: []const u8 = if (def_opt) |d| d.model else ref.model;
-    const reasoning: panto.config.ReasoningEffort = if (def_opt) |d| d.reasoning else .default;
+    const reasoning: panto.ReasoningEffort = if (def_opt) |d| d.reasoning else .default;
     const max_tokens: u32 = if (def_opt) |d| (d.max_tokens orelse 64_000) else 64_000;
 
     switch (prov.style) {
@@ -944,7 +944,7 @@ test "buildProviderConfig: missing alias uses the alias verbatim as wire model"
     const pc = try buildProviderConfig(&cfg, &models, ref);
     try testing.expectEqual(APIStyle.openai_chat, pc.style());
     try testing.expectEqualStrings("gpt-4o", pc.openai_chat.model);
-    try testing.expectEqual(panto.config.ReasoningEffort.default, pc.openai_chat.reasoning);
+    try testing.expectEqual(panto.ReasoningEffort.default, pc.openai_chat.reasoning);
 }
 
 test "buildProviderConfig: unknown provider errors" {