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Fair Value Measurements - Schedule of Liabilities by Class and Categorized Within Level 3 Under the Fair Value Hierarchy (Details) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 28, 2025 | Dec. 29, 2024
Schedule of Liabilities by Class and Categorized Within Level 3 Under the Fair Value Hierarchy [Line Items] |  |
Balance beginning | $ 101,699 | $ 14,791
Additions | 37,687 | 137,108
Conversions | (10,931) | (13,556)
Net (gain)/loss recognized within Other non-operating income, net in the consolidated statement of operations | (9,681) | (36,644)
Balance ending | 118,774 | 101,699
Derivative liabilities [Member] |  |
Schedule of Liabilities by Class and Categorized Within Level 3 Under the Fair Value Hierarchy [Line Items] |  |
Balance beginning | 97,122 |
Additions | 20,808 | 131,108
Conversions | (10,931) |
Net (gain)/loss recognized within Other non-operating income, net in the consolidated statement of operations | (11,490) | (33,986)
Balance ending | 95,509 | 97,122
Forward Purchase Agreements [Member] |  |
Schedule of Liabilities by Class and Categorized Within Level 3 Under the Fair Value Hierarchy [Line Items] |  |
Balance beginning | 3,494 | 3,831
Additions |  |
Conversions |  |
Net (gain)/loss recognized within Other non-operating income, net in the consolidated statement of operations | 471 | (337)
Balance ending | 3,965 | 3,494
SAFE Agreements [Member] |  |
Schedule of Liabilities by Class and Categorized Within Level 3 Under the Fair Value Hierarchy [Line Items] |  |
Balance beginning | 384 |
Additions |  | 6,000
Conversions |  | (6,250)
Net (gain)/loss recognized within Other non-operating income, net in the consolidated statement of operations | 151 | 634
Balance ending | 535 | 384
Warrant liabilities [Member] |  |
Schedule of Liabilities by Class and Categorized Within Level 3 Under the Fair Value Hierarchy [Line Items] |  |
Balance beginning | 699 | 10,960
Additions |  |
Conversions |  | (7,306)
Net (gain)/loss recognized within Other non-operating income, net in the consolidated statement of operations | 1,187 | (2,955)
Balance ending | 1,886 | 699
Deferred Ambia Consideration Shares [Member] |  |
Schedule of Liabilities by Class and Categorized Within Level 3 Under the Fair Value Hierarchy [Line Items] |  |
Balance beginning |  |
Additions | 16,879 |
Conversions |  |
Net (gain)/loss recognized within Other non-operating income, net in the consolidated statement of operations |  |
Balance ending | $ 16,879 |

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