feat(cli): replace IDE flags with interactive mode in init

[avallete]

Summary

Follow-up: #4598
Addresses PR review comments by refactoring IDE settings prompts and simplifying the API.

Changes

1. Replaced multiple flags with single --interactive flag

• Removed --with-vscode-settings, --with-vscode-workspace, and --with-intellij-settings
• Added --interactive (-i) flag (defaults to false for script compatibility)
• Interactive mode only activates when both the flag is set and running in a TTY terminal

2. Simplified init.Run signature

• Changed from Run(fsys, *bool, *bool, params) to Run(ctx, fsys, bool, params)
• Replaced pointer booleans with a single interactive boolean parameter
• Added context.Context parameter for proper cancellation support

3. Code reuse improvements

• Replaced custom isFirstFunctionCreation() with deploy.GetFunctionSlugs() as suggested
• Made PromptForIDESettings public and reusable from functions/new command
• Removed duplicate prompting logic

4. UI consistency

• Changed IDE extension/plugin links from utils.Aqua() to utils.Bold() for consistency

5. Updated tests

• Updated all test cases to match new function signatures
• Removed obsolete TestIsFirstFunctionCreation tests

Usage

# Non-interactive (default, suitable for scripts)
supabase init

# Interactive mode (prompts for IDE settings)
supabase init --interactive
supabase init -i

This follows the same pattern as supabase projects create for consistency across the CLI.

[coveralls]

Pull Request Test Coverage Report for Build 20128715106

Warning: This coverage report may be inaccurate.

This pull request's base commit is no longer the HEAD commit of its target branch. This means it includes changes from outside the original pull request, including, potentially, unrelated coverage changes.

• For more information on this, see Tracking coverage changes with pull request builds.
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• For a quick fix, rebase this PR at GitHub. Your next report should be accurate.

Details

• 12 of 44 (27.27%) changed or added relevant lines in 4 files are covered.
• 13 unchanged lines in 3 files lost coverage.
• Overall coverage decreased (-0.2%) to 56.046%

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Changes Missing Coverage	Covered Lines	Changed/Added Lines	%
internal/bootstrap/bootstrap.go	0	1	0.0%
internal/functions/new/new.go	4	6	66.67%
internal/init/init.go	8	16	50.0%
cmd/init.go	0	21	0.0%

Files with Coverage Reduction	New Missed Lines	%
cmd/init.go	1	0.0%
internal/gen/keys/keys.go	5	12.9%
internal/init/init.go	7	78.9%

Totals
Change from base Build 20098526635:	-0.2%
Covered Lines:	6813
Relevant Lines:	12156

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💛 - Coveralls