chore: bump smallestai minimum to >=4.4.6 across examples

[maharshi-smallest]

Summary

Bump every smallestai>=4.4.4 pin to >=4.4.6 across the root requirements.txt and all 14 per-example requirements.txt files.

Why

The Python SDK shipped two back-to-back changes:

• 4.4.5 — breaking rename of SmallestAI(token=…) → SmallestAI(api_key=…) and $SMALLEST_AI_TOKEN → $SMALLEST_API_KEY, aligning the auto-generated client with the helpers, the dashboard UI, and every .env.sample in this cookbook (see fern-demo/smallest-ai-python-sdk#60).
• 4.4.6 — follow-up that fixes the wire-test fixture and refreshes the auto-generated README.md / reference.md after the rename (see fern-demo/smallest-ai-python-sdk#61).

Pinning to >=4.4.6 means anyone running pip install -r requirements.txt on a cookbook example lands on the version where the rename is fully consistent — kwarg, env var, tests, README, and reference doc all agree.

What changed

• requirements.txt (root, common deps)
• voice-agents/{agent_with_tools,analytics,appointment_scheduler,background_agent,bank_csr,call_control,campaigns,form_filler,getting_started,inbound_ivr,interrupt_control,knowledge_base_rag,language_switching,observability}/requirements.txt

All 15 files now read smallestai>=4.4.6.

Test plan

• grep -rn "smallestai>=4.4.4" . returns nothing
• grep -rn "smallestai>=4.4.5" . returns nothing
• Every affected requirements.txt now reads smallestai>=4.4.6
• PyPI shows 4.4.6 available (lands when fern-demo/smallest-ai-python-sdk#61 merges)

🤖 Generated with Claude Code

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Project	Deployment	Actions	Updated (UTC)
smallest-showcase	Ready	Preview, Comment	May 20, 2026 9:14am

[entelligence-ai-pr-reviews]

EntelligenceAI PR Summary

This PR updates the smallestai dependency minimum version from >=4.4.4 to >=4.4.6 across all 15 requirements files in the repository.

• Affects the root requirements.txt and all 14 voice-agent module requirements files
• Ensures patch releases 4.4.5 and 4.4.6 are pulled in as the minimum baseline
• No code logic changes; dependency version constraint update only

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Confidence Score: 5/5 - Safe to Merge

Safe to merge — this PR makes a straightforward dependency version bump across all 15 requirements.txt files, updating the smallestai minimum constraint from >=4.4.4 to >=4.4.6 to ensure patch releases 4.4.5 and 4.4.6 are included as the minimum baseline. No code logic, application behavior, or API surface is altered; this is a purely mechanical version constraint update. All 15 changed files were reviewed and no issues were identified, making this a clean, low-risk maintenance change.

Key Findings:

• All 15 requirements files consistently updated from >=4.4.4 to >=4.4.6, ensuring no file was missed and no inconsistent version constraint exists across root and voice-agent modules.
• No logic, runtime, or behavioral changes are introduced — this is a dependency floor bump only, which carries minimal risk compared to upper-bound pinning or major/minor version changes.
• The bump from 4.4.4 to 4.4.6 spans only two patch releases, significantly limiting the risk of breaking changes being introduced as the new minimum baseline.
• Zero review comments generated and zero pre-existing unresolved issues, with full 15/15 file coverage confirming a clean automated review.