feat: implement Phase 1 meta-framework — manifest, codegen, ABI, tests

iseriser now generates complete -iser repositories from language descriptions.
The manifest schema ([project], [language], [output]) drives a three-stage
pipeline: parser (semantic validation), scaffold (20+ file generation including
Cargo.toml, Rust src, Idris2 ABI, Zig FFI, CI/CD, docs), and customizer
(paradigm/target/type-system-specific extras like ADT mappers, array bridges,
BEAM NIF boilerplate, deep ABI proof docs).

57 tests pass: 24 unit (abi, parser, scaffold, customizer, manifest),
9 integration (Chapel/Gleam/Julia/Idris2/ReScript pipelines, validation).

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Author: hyperpolymath

Cargo.lock

@@ -0,0 +1,23 @@
+= NewLang Example
+
+This directory contains an example iseriser manifest that generates
+a complete -iser for a fictional language called "NewLang".
+
+== Usage
+
+[source,bash]
+----
+cd /path/to/iseriser
+cargo run -- generate -m examples/newlang/iseriser.toml -o /tmp/generated
+----
+
+This produces a complete `newlangiser/` repository under `/tmp/generated/`
+with Cargo.toml, src/, Idris2 ABI, Zig FFI, tests, CI/CD, and docs.
+
+== Language Description
+
+* *Name:* NewLang
+* *Paradigm:* functional
+* *Type system:* algebraic
+* *Target:* native
+* *Key primitives:* atom, channel, record

examples/newlang/README.adoc

@@ -0,0 +1,25 @@
+# SPDX-License-Identifier: PMPL-1.0-or-later
+#
+# Example iseriser manifest: generate an -iser for a fictional language "NewLang".
+#
+# NewLang is a functional language with algebraic types that compiles to native
+# code.  It has three key primitives that need FFI bindings: atom, channel, record.
+#
+# To generate:
+#   cargo run -- generate -m examples/newlang/iseriser.toml -o /tmp/generated
+
+[project]
+name = "newlangiser"
+version = "0.1.0"
+
+[language]
+name = "NewLang"
+paradigm = "functional"
+type-system = "algebraic"
+compilation-target = "native"
+key-primitives = ["atom", "channel", "record"]
+
+[output]
+repo-name = "newlangiser"
+github-org = "hyperpolymath"
+description = "NewLang interop -iser — generated by iseriser"