Reorganize: Move all skills to skills/ folder

- Created skills/ directory
- Moved 272 skills to skills/ subfolder
- Kept agents/ at root level
- Kept installation scripts and docs at root level

Repository structure:
- skills/           - All 272 skills from skills.sh
- agents/           - Agent definitions
- *.sh, *.ps1       - Installation scripts
- README.md, etc.   - Documentation

Co-Authored-By: Claude <noreply@anthropic.com>

skills/plugins/claude-code-safety-net/dist/core/shell.d.ts

@@ -0,0 +1,15 @@
+export declare function splitShellCommands(command: string): string[][];
+export interface EnvStrippingResult {
+    tokens: string[];
+    envAssignments: Map<string, string>;
+}
+export declare function stripEnvAssignmentsWithInfo(tokens: string[]): EnvStrippingResult;
+export interface WrapperStrippingResult {
+    tokens: string[];
+    envAssignments: Map<string, string>;
+}
+export declare function stripWrappers(tokens: string[]): string[];
+export declare function stripWrappersWithInfo(tokens: string[]): WrapperStrippingResult;
+export declare function extractShortOpts(tokens: string[]): Set<string>;
+export declare function normalizeCommandToken(token: string): string;
+export declare function getBasename(token: string): string;