feat: enhance function execution options and logging capabilities

- Added `--route` and `--method` options to `function execute` command for better HTTP handling.
- Improved `get function` command to display additional function metadata including HTTP settings, cache status, network restrictions, RAM limits, timeouts, and tags.
- Removed deprecated `helloworld` command.
- Expanded `update function` command with new options for Docker mounts, network restrictions, and various installation flags, including better error handling for boolean and number options.
- Introduced environment variable management commands: `add`, `list`, and `remove` for account-wide environment variables.
- Added `export` command to export authenticated account data.
- Implemented `api openapi` and `api request` commands for direct API interaction.
- Created logging and rate limit management commands for functions.
- Added MCP tool commands for calling tools, fetching documentation, and initializing sessions.
- Introduced utility functions for JSON handling and environment variable normalization.
- Set up CI/CD pipeline with Gitea Actions for automated testing, building, and publishing.
- Updated configuration loading to support environment variables for instance and token.

src/utils/env_vars.ts

@@ -0,0 +1,23 @@
+export type EnvVar = { name: string; value: string };
+
+export function normalizeEnvList(value: unknown): EnvVar[] {
+  if (typeof value === "string") {
+    if (!value.trim()) return [];
+    try {
+      value = JSON.parse(value);
+    } catch {
+      return [];
+    }
+  }
+
+  if (!Array.isArray(value)) return [];
+
+  return value
+    .filter((item): item is EnvVar =>
+      item &&
+      typeof item === "object" &&
+      typeof (item as EnvVar).name === "string" &&
+      typeof (item as EnvVar).value === "string",
+    )
+    .map((item) => ({ name: item.name, value: item.value }));
+}