Add LSL development tools and VS Code configuration

.vscode/keybindings.json

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+[
+    {
+        "key": "ctrl+shift+h",
+        "command": "workbench.action.tasks.runTask",
+        "args": "Open LSL Documentation",
+        "when": "editorTextFocus && editorLangId == lsl"
+    },
+    {
+        "key": "ctrl+shift+f1",
+        "command": "workbench.action.tasks.runTask",
+        "args": "Search LSL Function",
+        "when": "editorTextFocus && editorLangId == lsl"
+    },
+    {
+        "key": "ctrl+alt+h",
+        "command": "workbench.action.tasks.runTask",
+        "args": "Open LSL Docs in Live Preview",
+        "when": "editorTextFocus && editorLangId == lsl"
+    }
+]

.vscode/settings.json

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+{
+    "lsl.documentationUrl": "https://lsl-docs.richardf.us",
+    "editor.quickSuggestions": {
+        "other": true,
+        "comments": false,
+        "strings": false
+    },
+    "editor.suggest.snippetsPreventQuickSuggestions": false,
+    "files.associations": {
+        "*.lsl": "lsl"
+    }
+}

.vscode/tasks.json

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+{
+    "version": "2.0.0",
+    "tasks": [
+        {
+            "label": "Open LSL Documentation",
+            "type": "shell",
+            "command": "xdg-open",
+            "args": ["https://lsl-docs.richardf.us"],
+            "group": "build",
+            "presentation": {
+                "echo": true,
+                "reveal": "silent",
+                "focus": false,
+                "panel": "shared",
+                "showReuseMessage": true,
+                "clear": false
+            },
+            "detail": "Opens LSL function reference in browser"
+        },
+        {
+            "label": "Search LSL Function",
+            "type": "shell",
+            "command": "xdg-open",
+            "args": ["https://lsl-docs.richardf.us#${input:searchFunction}"],
+            "group": "build",
+            "presentation": {
+                "echo": true,
+                "reveal": "silent",
+                "focus": false,
+                "panel": "shared",
+                "showReuseMessage": true,
+                "clear": false
+            },
+            "detail": "Search for a specific LSL function"
+        },
+        {
+            "label": "Validate LSL File",
+            "type": "shell",
+            "command": "python3",
+            "args": ["/home/richard/lsl-docs/tools/lsl_validator.py", "${file}"],
+            "group": "build",
+            "presentation": {
+                "echo": true,
+                "reveal": "always",
+                "focus": false,
+                "panel": "shared",
+                "showReuseMessage": true,
+                "clear": false
+            },
+            "detail": "Check LSL syntax and common errors"
+        },
+        {
+            "label": "Validate All LSL Files",
+            "type": "shell",
+            "command": "python3",
+            "args": ["/home/richard/lsl-docs/tools/lsl_validator.py", "${workspaceFolder}"],
+            "group": "build",
+            "presentation": {
+                "echo": true,
+                "reveal": "always",
+                "focus": false,
+                "panel": "shared",
+                "showReuseMessage": true,
+                "clear": false
+            },
+            "detail": "Validate all LSL files in the project"
+        },
+        {
+            "label": "Preprocess LSL File",
+            "type": "shell",
+            "command": "python3",
+            "args": ["/home/richard/lsl-docs/tools/lsl_preprocessor.py", "${file}"],
+            "group": "build",
+            "presentation": {
+                "echo": true,
+                "reveal": "always",
+                "focus": false,
+                "panel": "shared",
+                "showReuseMessage": true,
+                "clear": false
+            },
+            "detail": "Process LSL file with includes and macros"
+        },
+        {
+            "label": "Open LSL Docs in Live Preview",
+            "type": "shell",
+            "command": "${command:livePreview.start.externalPreview.atFile}",
+            "args": ["/home/richard/lsl-docs/index.html"],
+            "group": "build",
+            "presentation": {
+                "echo": true,
+                "reveal": "silent",
+                "focus": false,
+                "panel": "shared",
+                "showReuseMessage": true,
+                "clear": false
+            },
+            "detail": "Open LSL documentation in VS Code Live Preview"
+        }
+    ],
+    "inputs": [
+        {
+            "id": "searchFunction",
+            "description": "Enter LSL function name to search",
+            "default": "llSay",
+            "type": "promptString"
+        }
+    ]
+}