feat(just_template): add proc-macro `tmpl!` and restructure crate

Move the old `tmpl!` and `tmpl_param!` macros into a dedicated
`just_template_macros` proc-macro crate. The new `tmpl!` macro supports
both simple parameter assignment and multi-arm implementation blocks
with per-arm overrides. Remove the deprecated `deprecated` module and
update tests accordingly.

1 files changed, 5 insertions, 0 deletions

diff --git a/Cargo.toml b/Cargo.toml
index 157065c..b0aed88 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,4 +1,5 @@
 [workspace]
+resolver = "3"
 members = [
     "just_template",
     "just_template_macros",
@@ -9,3 +10,7 @@ version = "0.2.0"
 description = "A tool for code gen via templatese"
 authors = ["Weicao-CatilGrass <catil_grass@qq.com>"]
 edition = "2024"
+
+[workspace.dependencies]
+just_template = { path = "just_template" }
+just_template_macros = { path = "just_template_macros" }