Fix all pre-existing compliance test violations

[bilersan]

Problem

The compliance test suite (internal/compliance/compliance_test.go) detects ~50 pre-existing violations across 5 categories in the codebase. These were introduced before the compliance tests were added and block the pre-commit hook from passing cleanly.

Violations Found

1. SPDX License Headers (11 files)

• 6 files had truncated Apache-2. instead of Apache-2.0
• 5 files had no SPDX header at all

2. Missing doc.go Files (11 packages)

• bootstrap, cli/decision, cli/task, context, crypto, drift, index, rc, recall/parser, task, tpl

3. Literal "\n" Strings (9 files)

• Should use config.NewlineLF instead of "\n"

4. Literal ".md" Strings (4 files)

• Should use config.ExtMarkdown instead of ".md"

5. cmd.Printf/cmd.PrintErrf Usage (20 files)

• Should use cmd.Println(fmt.Sprintf(...)) / cmd.PrintErrln(fmt.Sprintf(...))

Impact

• Pre-commit hook fails on compliance checks
• All 5 compliance test categories (TestLicenseHeader, TestDocGoExists, TestNoLiteralNewline, TestNoLiteralMdExtension, TestNoCmdPrintf) report failures
• Total: 46 files affected across the codebase

Fix

Branch fix/compliance-violations addresses all violations. Build compiles, go vet clean, all 5 compliance tests pass.