Finch 2.5.0: docs (EN, PL), Kate and VS Code for the new features

- cheat sheets, technicians' and engineers' guides: "\(x)", test blocks, finch fmt, finch.toml,
  the build cache, the chain of calls, threads and atomics, C++/Rust/Android, struct #defines,
  passing structs, why there is no warning for big copies
- Kate (version 4) and VS Code: code inside text, test, min/max/abs/clamp/assert/atomic_...
- finch.toml's name is used only for its entry; other files of the project keep their own name

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_016GzNP6r8dg6WDxUVZy8wjL

editors/vscode/syntaxes/finch.tmLanguage.json

@@ -103,6 +103,10 @@
     },
     "statements": {
       "patterns": [
+        {
+          "name": "keyword.other.test.finch",
+          "match": "\\btest(?=\\s*\")"
+        },
         {
           "include": "#comments"
         },
@@ -147,7 +151,7 @@
           "match": "\\b(int|float|bool|char|str|ptr|map|i8|i16|i32|i64|u8|u16|u32|u64|f32|f64)\\b"
         },
         {
-          "match": "\\b(print|input|read_file|write_file|file_exists|delete_file|shell|exit|addr|new|free|error)\\s*(?=\\()",
+          "match": "\\b(print|input|read_file|write_file|file_exists|delete_file|shell|exit|addr|new|free|error|min|max|abs|clamp|assert|atomic_add|atomic_sub|atomic_load|atomic_store|atomic_swap|atomic_cas)\\s*(?=\\()",
           "captures": {
             "1": {
               "name": "support.function.builtin.finch"
@@ -217,6 +221,9 @@
       "begin": "\"",
       "end": "\"|$",
       "patterns": [
+        {
+          "include": "#interpolation"
+        },
         {
           "name": "constant.character.escape.finch",
           "match": "\\\\[ntr0\\\\\"']"
@@ -259,11 +266,49 @@
       "begin": "\"\"\"",
       "end": "\"\"\"",
       "patterns": [
+        {
+          "include": "#interpolation"
+        },
         {
           "name": "constant.character.escape.finch",
           "match": "\\\\[ntr0\\\\\"']"
         }
       ]
+    },
+    "interpolation": {
+      "name": "meta.embedded.line.finch",
+      "begin": "\\\\\\(",
+      "end": "\\)",
+      "beginCaptures": {
+        "0": {
+          "name": "punctuation.section.embedded.begin.finch"
+        }
+      },
+      "endCaptures": {
+        "0": {
+          "name": "punctuation.section.embedded.end.finch"
+        }
+      },
+      "patterns": [
+        {
+          "include": "#interpolation-parens"
+        },
+        {
+          "include": "$self"
+        }
+      ]
+    },
+    "interpolation-parens": {
+      "begin": "\\(",
+      "end": "\\)",
+      "patterns": [
+        {
+          "include": "#interpolation-parens"
+        },
+        {
+          "include": "$self"
+        }
+      ]
     }
   }
 }