fix: resolve CI failures in pezkuwi-subxt-metadata no_std and pezsp-api doc-tests

- Replace thiserror::Error derive with manual Display + core::error::Error
  impl in pezkuwi-subxt-metadata TryFromError, fixing no_std compilation
  (thiserror v1 does not support no_std)
- Add pezsp-test-primitives as dev-dependency to pezsp-api, fixing 3
  failing doc-tests that import pezsp_test_primitives::Block
- Revert unnecessary features=["std"] on workspace pezkuwi-subxt-metadata dep
- Apply taplo formatting to changed Cargo.toml files

bizinikiwi/primitives/api/Cargo.toml

@@ -36,21 +36,21 @@ thiserror = { optional = true, workspace = true }
 [features]
 default = ["std"]
 std = [
-	"codec/std",
-	"hash-db",
-	"log/std",
-	"pezsp-api-proc-macro/std",
-	"pezsp-core/std",
-	"pezsp-externalities",
-	"pezsp-externalities?/std",
-	"pezsp-metadata-ir?/std",
-	"pezsp-runtime-interface/std",
-	"pezsp-runtime/std",
-	"pezsp-state-machine/std",
-	"pezsp-trie/std",
-	"pezsp-version/std",
-	"scale-info/std",
-	"thiserror",
+  "codec/std",
+  "hash-db",
+  "log/std",
+  "pezsp-api-proc-macro/std",
+  "pezsp-core/std",
+  "pezsp-externalities",
+  "pezsp-externalities?/std",
+  "pezsp-metadata-ir?/std",
+  "pezsp-runtime-interface/std",
+  "pezsp-runtime/std",
+  "pezsp-state-machine/std",
+  "pezsp-trie/std",
+  "pezsp-version/std",
+  "scale-info/std",
+  "thiserror",
 ]
 # Special feature to disable logging completely.
 #
@@ -64,11 +64,14 @@ disable-logging = ["log/max_level_off"]
 no-metadata-docs = ["pezsp-api-proc-macro/no-metadata-docs"]
 frame-metadata = ["pezsp-metadata-ir"]
 runtime-benchmarks = [
-	"pezsp-runtime-interface/runtime-benchmarks",
-	"pezsp-runtime/runtime-benchmarks",
-	"pezsp-state-machine?/runtime-benchmarks",
-	"pezsp-trie?/runtime-benchmarks",
-	"pezsp-version/runtime-benchmarks",
+  "pezsp-runtime-interface/runtime-benchmarks",
+  "pezsp-runtime/runtime-benchmarks",
+  "pezsp-state-machine?/runtime-benchmarks",
+  "pezsp-trie?/runtime-benchmarks",
+  "pezsp-version/runtime-benchmarks",
 ]
 try-runtime = ["pezsp-runtime/try-runtime", "pezsp-version/try-runtime"]
 serde = []
+
+[dev-dependencies]
+pezsp-test-primitives = { workspace = true }