Clean up rebranding drift in docs, agent configs, and source comments

Fix stale references left over from the alknet-typedef → alktype migration:
- .opencode/agents/: replace @alkdev/alknet constraints (tokio, crypto, feature
  flags, anyhow/thiserror) with alktype-accurate ones (sync, AlkTypeError,
  WASM-clean); fix @alkimiadev → @alkdev org name; remove nonexistent AGENTS.md
  ref; replace alknet-http/alknet-agent spec examples
- docs/sdd_process.md: fix wrong package name (@alkdev/storage → @alkdev/alktype)
- docs/architecture/: rewrite dangling /workspace/ and docs/research/ paths as
  @alkdev/alknet: cross-repo references with explanatory notes; fix
  @alkimiadev → @alkdev; fix 'not yet used by any alknet crate' stale context
- src/ + tests/: correct '17 AlkType kinds' → '19' in doc comments (enum has 19
  variants; pre-existing count error); fix dangling /workspace/ path in
  poc_roundtrip.rs

src/data_access.rs

@@ -1,4 +1,4 @@
-//! Data access layer: primitive read/write functions for all 17 AlkType
+//! Data access layer: primitive read/write functions for all 19 AlkType
 //! kinds with endianness support, bounds checking, and zero-copy access.
 //!
 //! These are the building blocks used by the layout types ([`crate::offset_map`],

src/lib.rs

@@ -17,7 +17,7 @@
 //! - **TUnion dispatch** ([`tunion`]): Byte-offset and field-name
 //!   discriminator dispatch.
 //! - **Validation** ([`validation`]): Custom keyword validators for all
-//!   17 `AlkType:*` kinds, delegated to the `jsonschema` crate.
+//!   19 `AlkType:*` kinds, delegated to the `jsonschema` crate.
 //! - **Engine** ([`engine`]): `AlkTypeEngine` — the compiled form of a
 //!   schema, combining layout and validation.
 

src/macros.rs

@@ -1,4 +1,4 @@
-//! Macros for generating repetitive code across the 17 AlkType kinds.
+//! Macros for generating repetitive code across the 19 AlkType kinds.
 //!
 //! These macros eliminate boilerplate in validation, data access, and
 //! dispatch. Each macro takes a compact specification and generates the

src/validation.rs

@@ -1,4 +1,4 @@
-//! Custom keyword validators for all 17 `AlkType:*` kinds, registered
+//! Custom keyword validators for all 19 `AlkType:*` kinds, registered
 //! via `jsonschema::options().with_keyword(...)`.
 //!
 //! Per ADR-098: the `jsonschema` crate handles all structural validation;
@@ -14,7 +14,7 @@ use crate::error::AlkTypeError;
 use jsonschema::{Keyword, ValidationError};
 use serde_json::{Map, Value};
 
-/// Build a jsonschema validator with all 17 `AlkType:*` custom keywords
+/// Build a jsonschema validator with all 19 `AlkType:*` custom keywords
 /// registered.
 ///
 /// The returned validator can validate JSON representations of data