feat(lsp, ui, core): refactor LSP initialization, improve config handling, and clean up TreeSitter

* LSP Client & Manager
  Refactored initialization flow to use internal state instead of passing params
  Added workspace_path and init_opts to LSPClient
  Simplified send_initialize_message() (no external args)
  Updated manager/client APIs to require explicit workspace_path and typed init_opts
  Improved client lifecycle handling and UI button toggling

* LSP Manager UI
  Added {user.home} substitution support in configs
  Use live editor buffer for JSON config parsing instead of static template
  Minor cleanup and formatting improvements

* Core Widgets
  Prevent external modification checks for buffer-only files in SourceFile
  Minor formatting cleanup in SourceView

* Plugins / Manifest
  Expanded manifest schema: added description and copyright, reordered fields

* Cleanup
  Removed TreeSitter compile script and TODO entry
  General code formatting and small consistency fixes

chore: remove unused TreeSitter tooling and related TODO entry

src/core/widgets/code/source_file.py

@@ -155,9 +155,10 @@ class SourceFile(GtkSource.File):
         self.buffer.unblock_modified_changed_signal()
 
     def is_externally_modified(self) -> bool:
-        stat    = os.stat(self.fpath)
-        current = (stat.st_mtime_ns, stat.st_size)
+        if self.fname == "buffer": return
 
+        stat        = os.stat(self.fpath)
+        current     = (stat.st_mtime_ns, stat.st_size)
         is_modified = \
             hasattr(self, "last_state") and not current == self.last_state
 

src/core/widgets/code/source_view.py

@@ -19,10 +19,10 @@ class SourceView(GtkSource.View, SourceViewDnDMixin):
     def __init__(self, state: SourceViewStates = SourceViewStates.INSERT):
         super(SourceView, self).__init__()
 
-        self.state                = state
+        self.state         = state
 
-        self.sibling_right        = None
-        self.sibling_left         = None
+        self.sibling_right = None
+        self.sibling_left  = None
 
         self._setup_styles()
         self._setup_signals()

src/libs/dto/plugins/manifest.py

@@ -13,9 +13,11 @@ from .requests import Requests
 class Manifest:
     name: str          = ""
     author: str        = ""
-    credit: str        = ""
+    description: str   = ""
     version: str       = "0.0.1"
     support: str       = "support@mail.com"
+    credit: str        = ""
+    copyright: str     = "GPLv2"
     pre_launch: bool   = False
     autoload: bool     = True
     requests: Requests = field(default_factory = lambda: Requests())